Saucony Kinvara 6 Review

The Saucony Kinvara is a lightweight, comfortable shoe that has justifiably become popular with people wanting something more minimalist, but not too radical. The Kinvara is one of my top picks for runners looking to transition to a better running shoe from something more traditional. I've rated it as "The Best of the Best." (See below for details of changes from version 5 to 6.) (I use The Science of Running Shoes as the basis of how I test running shoes and what you should look for in a running shoe.)

Saucony Kinvara 6 top	Saucony Kinvara 6 bottom
Saucony Kinvara 6 inside	Saucony Kinvara 6 outside

1 Characteristics

• Why you’d buy it. The Kinvara will appeal to runners looking for something that's quite close to a traditional running shoe rather than a true minimalist shoe. I'd recommend considering the Hoka Clifton, Altra One, or Saucony Virrata as better shoes, but they are also further from the traditional design.
• Cushioning . The Kinvara is softly cushioned and comfortable, though it's not as soft as a Minimax shoe like the Hoka Clifton.
• Drop. The Kinvara has only 2mm of drop, which is close enough to zero-drop that you probably won't notice. While this is great, it might be an issue if you're looking for a transitional shoe that is part way between the high heels of a traditional running shoe (~10mm) and a zero drop shoe.
• Structure. This shoe uses single density of foam, with some shallow grooves to improve flexibility and save weight. Part of the foam is colored differently, but this is just a superficial paint, not actually a different density. Saucony's foam, branded "power grid" is claimed to be 15% lighter and 30% more durable than standard EVA. (It seems like everyone has foam that's better than standard EVA foam.)
• Flexibility. The Kinvara is reasonably flexible, and perhaps more flexible than you might expect from its thickness.
• Outsole. There is hard rubber covering about a third of the surface area, which protects most of the main contact patches. I found that the outsole and exposed midsole wore reasonably evenly (some shoes the midsole wears faster creating an uneven sole.)
• Shape. The shoe is does not match the shape of the human foot, so the toe box needs to be cut open for comfort. (I recommend cutting open the toe box of virtually all running shoes, with the exception of a few shoes like some Altra shoes. When you have some worn out shoes, you should try cutting open the toe box. I've found that it's a big improvement, allowing my toes to move naturally and engage for toe off, as well as reducing the possibility of blisters.)
• Upper. The upper is fairly complex with different materials and a number of seams. The Kinvara also has something they call "Pro-Lock", which is designed to create a tighter fit around the midfoot. I didn't find this made any difference, either positive or negative. The upper is inflexible and generally unpadded, and breaths moderately well. The padding around the ankle opening is good.
• Tongue. The Kinvara has a sock style tongue that is attached to either side of the upper. I found that this worked remarkably well, as it felt like a conventional tongue that stayed in place perfectly. The tongue has thick, soft padding.
• Lacing. The flat laces work well and remained tied.
• Heel Counter. The Heel Counter is quite firm and pronounced. It has relatively hard edges, but I did not find any problems with the edges kicking in.

Please support this site This review was made possible by readers like you buying products via my links. I buy all the products I review through normal retail channels, which allows me to create unbiased reviews free from the influence of reciprocity, or the need to keep vendors happy. It also ensures I don't get "reviewer specials" that are better than the retail versions. Buy Saucony Kinvara 6 at Zappos Buy Saucony Kinvara 6 at Road Runner Sports Buy Saucony Kinvara 6 at Kelly's Running Warehouse Buy Saucony Kinvara 6 at Charlotte Ultra Running Company

2 Cushioning and Shoes

It's intuitively obvious that the cushioning in a shoe will reduce the impact on your body when running. However, The Science of Running Shoes indicates that the reality is rather more complex. While slight cushioning may reduce the effort needed to run by improving your Running Economy, most scientific research indicates that more cushioning does further improve Running Economy. In addition, cushioning does not generally reduce impact and may actually increase it. This is counterintuitive, but is likely to be due to the way a runners mind and body adapts to softer cushioning. Unfortunately, the scientific evidence is far from complete and it's hard to give clear recommendations. I believe that some runners will prefer more cushioning, while others prefer less, and typically those running further have a fondness for greater cushioning. I also believe that a shoe should be as light as possible, and a shoe should justify its weight with the cushioning it provides. My advice is to decide what level of cushioning you're looking for, and then find the lightest shoes that also fit well and are comfortable.

3 Visualizing the Attributes of the Saucony Kinvara

How Saucony Kinvara compares showing rearfoot cushioning against the performance penalty of its weight. Upper right is better.	How Saucony Kinvara compares showing forefoot cushioning against the performance penalty of its weight. Upper right is better.
How Saucony Kinvara compares showing the price against the benefit (cushioning/performance penalty). Upper left is better.	How Saucony Kinvara compares showing the loaded drop against the benefit (cushioning/performance penalty). Upper left is better.

4 Comparisons

Here are some direct comparisons with its potential competition.

4.1 Saucony Kinvara versions 5 & 6

The update to the Kinvara 6 is quite minor, with the biggest change being to sizing. A Kinvara 5 sized 10.5 is the same as a Kinvara 6 size 11; a half size difference. I measured the Kinvara 6 as about 0.7oz heavier (size matched), but the update is also slightly better cushioned in the forefoot. The updated Kinvara also had a little less drop, down from about 5mm to 3mm when loaded. There are some trivial changes to the upper, but these are hard to spot even when you're looking. The "pro-lock" remains, but I found it mostly harmless in both versions.

Saucony Kinvara 6 top	Saucony Kinvara 6 bottom	Saucony Kinvara 6 inside	Saucony Kinvara 6 outside
Saucony Kinvara 5 Top	Saucony Kinvara 5 Bottom	Saucony Kinvara 5 Inside	Saucony Kinvara 5 Outside

Please support this site This review was made possible by readers like you buying products via my links. I buy all the products I review through normal retail channels, which allows me to create unbiased reviews free from the influence of reciprocity, or the need to keep vendors happy. It also ensures I don't get "reviewer specials" that are better than the retail versions. Buy Saucony Kinvara 5 at Zappos Buy Saucony Kinvara 5 at Road Runner Sports Buy Saucony Kinvara 5 at Kelly's Running Warehouse Buy Saucony Kinvara 5 at Charlotte Ultra Running Company

4.2 Saucony Kinvara and Hoka Clifton

While the Kinvara is a good transitional shoe, the Hoka Clifton is the one of the better shoes that runners should be looking to. The Clifton is both lighter and better cushioned than the Kinvara, and given both have similar levels of drop and longevity, the Clifton is a better shoe.

Saucony Kinvara 6 top	Saucony Kinvara 6 bottom	Saucony Kinvara 6 inside	Saucony Kinvara 6 outside
Hoka OneOne Clifton top	Hoka OneOne Clifton bottom	Hoka OneOne Clifton inside	Hoka OneOne Clifton outside

Please support this site This review was made possible by readers like you buying products via my links. I buy all the products I review through normal retail channels, which allows me to create unbiased reviews free from the influence of reciprocity, or the need to keep vendors happy. It also ensures I don't get "reviewer specials" that are better than the retail versions. Buy Hoka Clifton 2 at Zappos Buy Hoka Clifton 2 at Road Runner Sports Buy Hoka Clifton 2 at Kelly's Running Warehouse Buy Hoka Clifton 2 at Charlotte Ultra Running Company

4.3 Saucony Kinvara and Asics Gel Hyper Speed

The Asics Gel Hyper Speed offers similar levels of cushioning to the Kinvara, but 2.6oz less, making it a more efficient shoe to run in.

Saucony Kinvara 6 top	Saucony Kinvara 6 bottom	Saucony Kinvara 6 inside	Saucony Kinvara 6 outside
Asics Gel Hyper Speed 6 top	Asics Gel Hyper Speed 6 bottom	Asics Gel Hyper Speed 6 inside	Asics Gel Hyper Speed 6 outside

Please support this site This review was made possible by readers like you buying products via my links. I buy all the products I review through normal retail channels, which allows me to create unbiased reviews free from the influence of reciprocity, or the need to keep vendors happy. It also ensures I don't get "reviewer specials" that are better than the retail versions. Buy Asics Gel Hyper Speed 6 at Zappos Buy Asics Gel Hyper Speed 6 at Road Runner Sports Buy Asics Gel Hyper Speed 6 at Kelly's Running Warehouse Buy Asics Gel Hyper Speed 6 at Charlotte Ultra Running Company

4.4 Saucony Kinvara‏‎‏‎ and Asics GT 2000

I tend to compare shoes against my benchmark "normal running shoe", the Asics GT 2000. The GT 2000 is over engineered and these features go against The Science of Running Shoes, causing more problems than they solve. The GT 2000 represents the shoes I expect many runners to be transitioning away from; it's a lot heavier, but less well cushioned. The GT 2000 has a high heel and various densities of foam in an attempt to manipulate your stride. Compared with the Kinvara the GT 2000 is rather clog like.

Saucony Kinvara 6 top	Saucony Kinvara 6 bottom	Saucony Kinvara 6 inside	Saucony Kinvara 6 outside
Asics GT2000 top	Asics GT2000 bottom	Asics GT2000 inside	Asics GT2000 outside

5 A Comparison with other Recommended Shoes

If you're looking for "the best of the best" running shoe, here are my top picks. Of course, the answer will depend a little on what you're looking for, so I have recommendations for various categories. Best All Round Shoe. The Altra Escalante is my current all-round favorite. It has plenty of cushioning for its weight, it has a very springy midsole, it lasts well, and it has a shape that's closer to the shape of a human foot than most shoes. It's a great shoe for any runner, including those Starting to run. It's also a fairly easy shoe to find due to its popularity. Best Maximalist Shoe: If you want something massively cushioned, then I'd recommend the Saucony Kinvara 8. It's remarkably light and remarkably cushioned, beating Hoka at their own game. Best Optimal Shoe: For those looking to trade cushioning for speed, the Nike Zoom Streak LT 3 was my top pick, but the latest version (LT 4) falls short of it's predecessor. There are lots of great optimal running shoes, which provide just enough cushioning with light weight and minimal frills, but all have their weak spots. Probably the best option at the moment is the Altra Vanish-R, which offers great cushioning for just over 5oz/150g. Fastest Shoe: If you really want speed, then check out the Nike Vaporfly 4%. It's light, massively cushioned, and has a carbon fiber plate. Nothing comes close, not even the now defunct New Balance RC5000‏‎ or New Balance RC5000v2‏‎. There are a number of caveats; it's really expensive, it's really hard to find, and there's a significant injury risk. Best Minimalist Shoe: Merrell Trail Glove. I recommend the trail glove for road running in spite of the 'trail' moniker. It's not a fast shoe by any means, but it's comfortable and will last well. All Terrain Shoe. For trail running, I've become a fan of Altra, and I think their best shoe is the the Altra Timp, though the Altra Lone Peak is really close. Honorable Mention: It's not really a running shoe, but the Vivobarefoot Ra is comfortable, minimalist and can more or less pass as a dress shoe. I've worn mine to weddings with a suit and they've not looked out of place. You can run in the Ra, but the leather means it doesn't breathe well.

For a more detailed on running shoes see the Recommendations for Best Running Shoes. This table lists the key attributes of What to Look for in Running Shoes. For more detailed information, on the shoes see detailed shoe comparison.

Full Review	Brand	Name	Rating	Recommended price	Benefit	Weight (oz)	Penalty (sec/mile)	Forefoot Thickness	Heel Thickness	Loaded Drop mm	Cushioning	Flexibility
Saucony Type A Review	Saucony	A/A7	Recommended	$100	6.4	6.7	12.1	19	22	1	4.3	7
Saucony Type A6 Review	Saucony	A6	Highly Recommended	$100	8.2	6.1	9.5	17	21	4	5.0	7
Saucony Type A8 Review	Saucony	A8	Highly Recommended	$90	7.5	6.2	9.7	19	20	-1	4.7	7
Adidas Adios Boost 2 Review	Adidas	Adios	Worth considering	$140	4.7	8.6	13.4	17	27	11	4.0	6
Hoka Bondi 5 Review	Hoka	Bondi	Recommended	$150	6.1	11.6	18.1	38	42	5	7.1	2
Hoka Clayton 2 Review	Hoka	Clayton2	Highly Recommended	$150	9.1	8.3	12.9	23	28	1	7.5	5
Hoka Clifton 4 Review	Hoka	Clifton4	Worth considering	$130	7.7	9.3	14.5	30	35	10	7.2	3
ON Cloudflash Review	On Cloud	Cloudflash	Worth considering	$180	4.4	8.3	14.6	19	26	7	3.7	6
On Cloudracer Review	On Cloud	Cloudracer	Worth considering	$130	5.7	8.2	12.8	19	27	5	4.7	7
ON Cloud X Review	On Cloud	CloudX	Not recommended	$140	4.5	8.3	16.3	21	27	7	3.8	7
Mizuno Wave Cruise Review	Mizuno	Cruise	Worth considering	$120	6.6	5.9	12.5	17	20	7	3.9	6
Newton Distance IV Review	Newton	Distance	Worth considering	$155	7.5	9.1	14.2	26	31	3	6.8	5
Asics Gel DS Racer 10 Review	Asics	DS Racer	Worth considering	$110	8.2	7.0	10.9	21	26	6	5.8	5
Altra Duo Review	Altra	Duo	Recommended	$130	6.0	8.4	13.1	29	29	1	5.0	5
Mizuno Wave Ekiden 8 Review	Mizuno	Ekiden	Worth considering	$115	5.7	5.7	14.6	13	18	6	3.2	8
Saucony Endorphin 2 Review	Saucony	Endorphin 2	Worth considering	$115	8.0	5.1	9.6	15	13	-1	4.1	8
Adidas Energy Boost Review	Adidas	Energy	Worth considering	$160	7.2	10.0	15.6	20	30	7	7.2	5
Altra Escalante Review	Altra	Escalante	Best of the Best	$130	9.1	8.7	13.5	28	25	-1	7.9	6
Altra Escalante 1.5 Review	Altra	Escalante 1.5	Best of the Best	$130	8.2	9.0	14.0	26	27	-1	7.4	7
Saucony Fastwitch Review	Saucony	Fastwitch	Highly Recommended	$90	9.5	7.1	11.1	20	22	4	6.8	7
Topo Fli-Lyte 2 Review	Topo	Fli-Lyte2	Highly Recommended	$100	6.7	9.1	14.2	24	26	3	6.1	5
Reebok Floatride Run Review	Reebok	Floatride	Worth considering	$150	7.7	9.6	14.9	28	34	10	7.4	5
Saucony Freedom Review	Saucony	Freedom	Recommended	$160	5.4	10.7	16.6	25	29	3	5.8	6
Skechers GORun 4 Review	Skechers	GORun	Not recommended	$100	6.1	7.5	11.7	15	23	3	4.5	7
Skechers GOrun Ultra 2 Review	Skechers	GRU	Worth considering	$90	7.5	10.0	15.6	28	34	8	7.5	4
Asics GT 2000 Review	Asics	GT 2000	Not recommended	$120	4.8	11.2	17.4	28	35	5	5.4	2
New Balance Hanzo S Review	New Balance	Hanzo	Worth considering	$110	7.6	6.9	10.7	21	19	2	5.2	5
Hoka Hupana Review	Hoka	Hupana	Recommended	$115	6.1	8.9	13.9	31	36	7	5.4	4
Asics Gel Hyper Speed 7 Review	Asics	Hyper Speed	Highly Recommended	$75	10.9	6.3	9.8	22	26	5	6.8	6
Altra Instinct 4.0 Review	Altra	Instinct 4.0	Worth considering	$120	6.0	9.8	15.3	29	25	-1	5.9	5
Asics Tarther Kainos 3 Review	Asics	Kainos	Worth considering	$130	10.0	6.9	10.7	17	27	9	6.8	6
Altra King MT 1.5 Review	Altra	King MT	Recommended	$140	7.5	10.7	16.7	19	21	3	8.0	5
Saucony Kinvara 8 Review	Saucony	Kinvara 8	Best of the Best	$110	9.3	8.6	13.4	26	31	3	8.0	5
Altra Lone Peak 3.5 Review	Altra	Lone Peak	Highly Recommended	$120	4.2	11.4	17.7	24	25	4	4.8	5
Nike Zoom Streak LT 3 Review	Nike	LT3	Best of the Best	$80	9.8	5.4	8.4	16	21	5	5.3	7
Nike Zoom Streak LT 4 Review	Nike	LT4	Recommended	$90	8.5	5.5	8.5	15	21	3	4.6	6
Nike LunarSpider R5 Review	Nike	LunarSpider	Recommended	$125	6.9	6.7	10.4	17	21	3	4.6	6
Hoka Mafate Speed Review	Hoka	Mafate	Best of the Best	$170	7.6	11.9	18.5	39	40	4	9.0	1
Pearl Izumi EM Road N0 v2 Review	Pearl	N0	Highly Recommended	$100	7.9	6.5	10.1	14	20	4	5.2	8
Saucony Nomad Review	Saucony	Nomad	Worth considering	$110	4.3	10.5	17.2	25	27	2	4.5	4
Hoka Odyssey Review	Hoka	Odyssey	Highly Recommended	$130	8.5	9.4	14.6	37	45	5	8.0	3
Altra Olympus 2.5 Review	Altra	Olympus	Highly Recommended	$150	4.6	11.8	18.4	35	34	0	5.4	6
Altra One 3.0 Review	Altra	One	Recommended	$100	6.1	8.8	13.7	23	23	0	5.4	6
Altra Paradigm 4.0 Review	Altra	Paradigm	Highly Recommended	$150	5.3	11.0	17.1	28	30	5	5.8	8
Asics Piranha SP 5 Review	Asics	Piranha	Recommended	$100	10.1	4.2	6.5	11	15	3	4.2	9
Brooks PureFlow 5 Review	Brooks	PureFlow	Worth considering	$110	6.0	9.7	15.1	26	29	5	5.8	8
Salming Race Review	Salming	Race	Worth considering	$130	6.9	6.5	10.1	16	19	4	4.5	6
Altra Escalante Racer Review	Altra	Racer	Highly Recommended	$140	6.6	7.6	11.8	24	26	6	5.0	8
New Balance RC1600 v2 Review	New Balance	RC1600	Highly Recommended	$110	8.8	5.6	8.7	15	21	5	4.9	8
New Balance RC5000v2 Review	New Balance	RC5000v2	Best of the Best	$125	14.2	4.0	6.2	13	21	6	5.7	7
Skechers GoRun Ride 3 Review	Skechers	Ride	Worth considering	$85	5.9	8.5	13.2	18	28	6	5.0	8
Nike RN Distance 2 Review	Nike	RNDist2	Worth considering	$120	8.0	9.2	14.3	25	28	4	7.4	7
Inov-8 RoadXTreme 220 Review	Inov-8	RXT-220	Worth considering	$120	5.2	8.0	18.2	14	17	3	4.2	8
Salomon Sense Ride Review	Salomon	Sense	Worth considering	$120	8.5	10.0	15.6	26	29	6	8.5	0
Altra Solstice Review	Altra	Solstice	Highly Recommended	$90	7.1	8.1	12.5	23	25	0	5.7	5
Topo ST-2 Review	Topo	ST-2	Highly Recommended	$90	8.2	7.3	11.4	20	18	0	6.0	7
Hoka Stinson Lite Review	Hoka	Stinson	Highly Recommended	$160	7.3	11.6	18.1	35	40	6	8.5	0
Altra Superior	Altra	Superior	Highly Recommended	$110	5.6	9.9	15.5	21	25	-1	5.5	4
Adidas Takumi Sen 3 Review	Adidas	Takumi Sen 3	Highly Recommended	$160	7.7	6.6	10.2	17	21	4	5.1	5
Topo Terraventure	Topo	Terraventure	Review Pending	$110	2.6	10.8	27.5	24	24	0	2.8	10
Altra Timp Review	Altra	Timp	Best of the Best	$130	3.7	11.6	18.1	30	31	-1	4.3	6
Altra Torin 2.0 Review	Altra	Torin	Worth considering	$125	3.4	9.6	20.7	30	25	1	3.3	9
Altra Torin 3.5 Review	Altra	Torin 3.5	Worth considering	$125	5.8	9.3	14.5	27	28	0	5.4	8
Hoka Tracer Review	Hoka	Tracer	Recommended	$130	7.2	7.4	11.5	21	24	2	5.3	5
Merrell Trail Glove 4 Review	Merrell	Trail Glove 4	Best of the Best	$100	3.4	8.4	23.8	13	13	0	2.8	10
Topo Tribute Review	Topo	Tribute	Recommended	$100	5.9	7.3	11.4	20	18	-1	4.3	6
Mizuno Wave Universe 5 Review	Mizuno	Universe	Highly Recommended	$125	10.7	3.1	10.6	9	12	1	3.3	9
Altra Vanish-R Review	Altra	Vanish-R	Recommended	$100	16.1	5.3	8.2	19	21	4	8.5	6
Merrell Vapor Glove 3 Review	Merrell	Vapor Glove 3	Highly Recommended	$85	2.1	6.1	27.6	6	5	0	1.3	10
Nike Vaporfly 4% Review	Nike	Vaporfly	Best of the Best	$250	10.4	7.2	11.2	25	37	8	7.5	2
New Balance Vazee Pace Review	New Balance	Vazee Pace	Worth considering	$110	6.0	8.6	13.4	18	24	6	5.2	5
Asics TartherZeal 3 Review	Asics	Zeal	Worth considering	$140	10.9	6.3	9.8	17	27	9	6.8	6
Saucony Zealot 3 Review	Saucony	Zealot3	Recommended	$130	8.9	9.5	14.8	29	32	4	8.5	6
Nike Zoom Fly Review	Nike	Zoom Fly	Worth considering	$150	8.3	8.7	13.5	29	36	8	7.2	3

It's not a running shoe, but I love the Hoka Tor Ultra hiking boot and I've tested the Altra Lone Peak Boot, the Hoka Tor Speed 2, and the Inov-8 Roclite 325 hiking boots
Older shoe reviews: Saucony Hattori Review, Mizuno Cursoris Review, Skechers GO Bionic 2 Review, Hoka Clifton Review, Saucony Virrata 2 Review, Brooks PureCadence 3 Review, Brooks PureConnect 3 Review, Brooks PureFlow 3 Review, Skechers GO Bionic 2 Review, New Balance 980 Review, Brooks Transcend 2 Review, Hoka Huaka Review, Patagonia EVERlong Review, Asics 33-DFA Review, Hoka Conquest Review, Saucony Cortana Review, Puma Faas 100 R Review, Saucony Fastwitch Review, Nike Free Review, Asics Gel Lyte 33 Review, Skechers GOmeb Speed Review, Skechers GOrun Ultra Road Review, Nike LunaRacer Review, Altra Paradigm Review.