Altra Instinct/Intuition 4.0 Review

From Fellrnr.com, Running tips
(Redirected from Altra Instinct)
Jump to: navigation, search

The Altra Instinct 4.0 is a much better shoe than the previous 3.5 version, and comes a surprisingly close to my favorite iteration, the 2.0 version. The cushioning-to-weight ratio is pretty much the same as the 2.0, with the 4.0 being slightly lighter, and slightly less cushioned. This version of the Instinct is a smooth riding shoe, with nothing much to interfere with your biomechanics. I do feel that the cushioning is a little less springy than I would like, and feels just slightly dead. The shape matches the human foot nicely, so it doesn't crush your toes, though I do wish there was more height in the toe box. The upper is nicely breathable and open, and it's a comfortable shoe even though it's not got to the excessively padded, skateboard feel that the 2.0 did. I rated the Instinct 4 as "Worth Considering", as it's a good choice, but there are a number of shoes that are better. (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.)

Altra Instinct 4.0 top
Altra Instinct 4.0 bottom
Altra Instinct 4.0 inside
Altra Instinct 4.0 outside

1 Characteristics

  • Cushioning . The Instinct 4 has a reasonable cushioning-to-weight ratio, and it's an improvement on its predecessors. The cushioning is reasonably smooth and even, but I find it a little "dead" and lacking in the bounce. This is particularly noticeable after wearing the Altra Escalante, but that's an exceptional shoe. The latest version is a little closer to my favorite, the Altra Instinct 2, though I know other runners and found that a little too squishy.
  • Drop. Like all Altra shoes, the Instinct claims to be zero drop. My measurements indicate that it's actually slightly negative drop, with the forefoot a little thicker than the heel. I doubt if many runners will notice this, and I wouldn't let it put you off if you're off to a zero-drop shoe.
  • Structure. The Instinct uses just one density of foam, and doesn't attempt to manipulate or interfere with your natural biomechanics. The midsole is not completely flat, with some rise under the midfoot. I'd say the Instinct 4 has less of a molded shape than most running shoes and you may find it feeling rather flatter than other shoes.
  • Flexibility. The Instinct has more flexibility than I expected, and it's similar to the Hoka Clifton, but far more than the other Hoka shoes. However, the flexibility doesn't have much spring to it, which may reduce your Running Economy. Personally, I'd rather have more flexibility or the same flexibility with more spring.
  • Outsole. There's a good layer of harder rubber outsole that effectively covers the entire sole of the shoe. There's a few gaps to improve flexibility, but coverage is good. a gap in the outsole near the smaller toes, which is an odd choice, but doesn't cause a problem. The sole of the Instinct does not conform to stony trails in quite the same way that many of the Hoka shoes do, and there's no grip on the outsole, so it's best kept for road running.
  • Shape. The Altra Instinct is designed to fit the human foot, and they mostly get it right. The shape is a little overly stylized, and doesn't provide enough room for the big toe to display out. I found that there wasn't quite enough headroom in the toe box and my toes eight after an hour or so. This is another area where the Instinct 2 was better, as the toe box height seems to be reduced with each version. (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 quite breathable, as you can see from the backlit photo below. The ankle opening is fairly well-padded, but doesn't have the extreme adding that the Instinct 2 had that made it feel a little like a skateboarding shoe. There is a reinforcement patch around the extreme front, acting as a toe bumper, but I didn't feel that this impact on my toes. On the other hand, I doubt if it will give much protection from stubbed toes either. For some reason, the grey reflective stripe with the Altra name and logo on it is actually a loop that you could start something into. It's not clear to me what this is for, so let me know in the comments if you have any insight.
    A shot of the Instinct 4 backlight to show breathability.
  • Tongue. The Instinct has a traditional tongue with a tab to attach it to the laces. It's extremely well-padded, but perhaps just a tad short.
  • Lacing. The traditional flat laces stayed tied. This is such a simple thing, but it seems like most shoe companies are able to get this wrong.
  • Heel Counter. The Instinct has a large, ridged heel counter, but the upper is sufficiently padded to isolate you from this. It's unlikely to have any effect unless you twist your ankle, in which case it could dig in
helping-hand.jpg

2 A Comparison with other Recommended Shoes

For a more detailed comparison of these 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
Asics 33-DFA Review Asics 33-DFA Worth considering $90 5.7 10.6 16.5 27 27 0 6.1 6
Saucony Type A6 Review Saucony A6 Highly Recommended $100 8.2 6.1 9.5 17 21 4 5.0 8
Adidas Adios Boost 2 Review Adidas Adios Worth considering $140 4.7 8.6 13.4 17 27 11 4.0 7
Hoka Bondi 5 Review Hoka Bondi Recommended $150 6.1 11.6 18.1 38 42 5 7.1 4
Hoka Clayton Review Hoka Clayton Best of the Best $150 8.8 8.3 12.9 26 30 3 7.3 5
Hoka Clayton 2 Review Hoka Clayton 2 Review Pending $150 9.1 8.3 12.9 23 28 1 7.5 6
Hoka Clifton 3 Review Hoka Clifton3 Best of the Best $130 9.1 9.8 15.3 34 38 3 8.9 6
On Cloudracer Review On Cloud Cloudracer Worth considering $130 5.7 8.2 12.8 19 27 5 4.7 8
Hoka Conquest Review Hoka Conquest Worth considering $170 5.0 11.9 18.5 28 34 5 6.0 3
Saucony Cortana 4 Review Saucony Cortana Worth considering $150 4.4 9.9 18.7 22 28 5 4.3 5
Mizuno Wave Cruise Review Mizuno Cruise Worth considering $120 6.6 5.9 12.5 17 20 7 3.9 7
Newton Distance IV Review Newton Distance Worth considering $155 7.5 9.1 14.2 26 31 3 6.8 6
Asics Gel DS Racer 10 Review Asics DS Racer Worth considering $110 8.2 7.0 10.9 21 26 6 5.8 6
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 6
Altra Escalante Review Altra Escalante Best of the Best $130 9.1 8.7 13.5 28 25 -1 7.9 7
Puma Faas 100 R Review Puma Faas 100 Highly Recommended $90 8.4 6.1 9.4 15 20 1 5.1 9
Saucony Fastwitch Review Saucony Fastwitch Highly Recommended $90 9.5 7.1 11.1 20 22 4 6.8 8
Topo Fli-Lyte Review Topo Fli-Lyte Highly Recommended $100 6.0 9.4 14.6 23 24 4 5.6 6
Nike Free 4.0 Review Nike Free Recommended $120 5.3 8.2 13.6 24 30 6 4.4 6
Saucony Freedom Review Saucony Freedom Recommended $160 5.4 10.7 16.6 25 29 3 5.8 7
Asics Gel Lyte 33 3 Review Asics Gel Lyte Not recommended $90 8.0 7.3 11.4 17 24 4 5.8 9
Skechers GOmeb Speed 3 Review Skechers GOmeb 3 Worth considering $120 6.9 8.1 12.6 20 24 4 5.5 8
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 5
Skechers GOrun Ultra Road Review Skechers GRU-R Worth considering $105 6.5 11.3 17.6 30 40 6 7.4 7
Asics GT 2000 Review Asics GT 2000 Not recommended $120 4.8 11.2 17.4 28 35 5 5.4 4
New Balance Hanzo S New Balance Hanzo Worth considering $110 7.6 6.9 10.7 21 19 2 5.2 6
Hoka Hupana Review Hoka Hupana Recommended $115 6.1 8.9 13.9 31 36 7 5.4 5
Asics Gel Hyper Speed 7 Review Asics Hyper Speed Highly Recommended $75 10.9 6.3 9.8 22 26 5 6.8 7
Altra Instinct 3.5 3.5 Review Altra Instinct 3.5 Recommended $115 4.9 9.3 15.2 24 23 0 4.5 6
Altra Instinct 4.0 Review Altra Instinct 4.0 Worth considering $120 6.0 9.8 15.3 29 25 -1 5.9 6
Asics Tarther Kainos 3 Review Asics Kainos Worth considering $130 10.0 6.9 10.7 17 27 9 6.8 7
Saucony Kinvara 8 Review Saucony Kinvara 8 Best of the Best $110 9.3 8.6 13.4 26 31 3 8.0 6
Nike LunaRacer 4 Review Nike LunaRacer Recommended $90 9.9 7.0 10.9 22 30 7 6.9 6
Nike LunarSpider R5 Review Nike LunarSpider Recommended $125 6.9 6.7 10.4 17 21 3 4.6 7
Hoka Mafate Speed Review Hoka Mafate Best of the Best $170 7.6 11.9 18.5 39 40 4 9.0 3
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 5
Hoka Odyssey Review Hoka Odyssey Highly Recommended $130 8.5 9.4 14.6 37 45 5 8.0 4
Altra Olympus Review Altra Olympus Highly Recommended $130 5.4 11.8 18.4 27 27 3 6.4 4
Altra One 2.5 Review Altra One Highly Recommended $100 8.5 7.1 11.1 22 25 2 6.0 8
Altra One 3.0 Review Altra One Review Pending $100 6.1 8.8 13.7 23 23 0 5.4 7
Altra Paradigm Review Altra Paradigm Highly Recommended $130 6.4 9.9 15.4 25 25 1 6.4 4
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 7
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 RC5000 Review New Balance RC5000 Best of the Best $125 12.2 3.4 5.3 13 17 3 4.2 8
New Balance RC5000v2 Review New Balance RC5000v2 Best of the Best $125 14.2 4.0 6.2 13 21 6 5.7 8
Skechers GoRun Ride 3 Review Skechers Ride Worth considering $85 5.9 8.5 13.2 18 28 6 5.0 9
Inov-8 RoadXTreme 220 Review Inov-8 RXT-220 Worth considering $120 5.2 8.0 18.2 14 17 3 4.2 9
Topo ST-2 Review Topo ST-2 Highly Recommended $90 8.2 7.3 11.4 20 18 0 6.0 8
Hoka Stinson Lite Review Hoka Stinson Highly Recommended $160 7.3 11.6 18.1 35 40 6 8.5 2
Nike Zoom Streak LT 3 Review Nike Streak LT Best of the Best $80 8.8 5.4 8.4 16 21 4 4.8 6
Adidas Takumi Sen 3 Review Adidas Takumi Sen 3 Highly Recommended $160 7.7 6.6 10.2 17 21 4 5.1 6
Altra Torin 2.0 Review Altra Torin Worth considering $125 5.8 9.6 14.9 28 25 -1 5.5 5
Hoka Tracer Review Hoka Tracer Recommended $130 7.2 7.4 11.5 21 24 2 5.3 6
Merrell Trail Glove 3 Review Merrell Trail Glove Best of the Best $100 2.9 6.9 24.7 11 11 0 2.0 9
Topo Tribute Review Topo Tribute Recommended $100 5.9 7.3 11.4 20 18 -1 4.3 7
Mizuno Wave Universe 5 Review Mizuno Universe Highly Recommended $125 10.7 3.1 10.6 9 12 1 3.3 9
Merrell Vapor Glove 2 Review Merrell Vapor Glove Highly Recommended $85 2.1 6.1 27.6 6 5 0 1.3 10
New Balance Vazee Pace Review New Balance Vazee Pace Worth considering $110 6.0 8.6 13.4 18 24 6 5.2 6
Asics TartherZeal 3 Review Asics Zeal Worth considering $140 10.9 6.3 9.8 17 27 9 6.8 7

It's not a running shoe, but I love the Hoka Tor Ultra hiking boot and I've tested the Altra Lone Peak Boot.
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.
Reviews of shoes that are not worth including on the table: Hoka Huaka Review, Patagonia EVERlong Review.