Inov-8 RoadXTreme 220 Review
The Inov-8 RoadXTreme 220 is an excessively firm shoe, and provides relatively little cushioning for its weight. While it could be considered relatively light weight in comparison with many of the shoes, I believe you can do much better, either getting vastly more cushioning for the same weight, with the same cushioning for a vastly lower weight. If you want a shoe that provides a little protection from stones, such as running on gravel roads, without much in the way of cushioning, then you could give the 220 a try. The other aspects of the 220 are reasonable but not outstanding. For instance, the outsole uses materials and technology that could have been put to much better use. I rate the 220 as "Worth Considering". (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.)
- New Balance RC5000, and the RoadXTreme 220 weighs more than twice as much. The comparison with that the updated New Balance RC5000v2 is even more brutal; the RoadXTreme 220 is twice as heavy but far less cushioned. Rather strangely, there's more cushioning in the forefoot than the heel, something I've rarely found in running shoes. If you look at just the forefoot cushioning, then the RoadXTreme 220 is not quite as bad, but still provides less cushioning than shoes like the Asics Gel Hyper Speed that way much less. To be fair, Inov-8 does advertise this as a minimally cushioned shoe, which is fine if the weight reflected the lack of cushioning. I've also noticed a certain degree of unevenness in the forefoot, as the midsole is thinner where the harder rubber outsole patches are located. This didn't cause me any problems on the shorter runs, but over longer distances it could be an issue. . The biggest problem with the RoadXTreme 220 is its lack of cushioning. The midsole foam is firm to the point of being hard. It offers similar levels of cushioning to the original
- . The RoadXTreme 220 has only 3mm of drop when worn, which is close enough to zero-drop that you probably won't notice.
- . The RoadXTreme 220 has a single density of foam is nice and simple, without any attempt to interfere with natural foot movement.
- . The RoadXTreme 220 is a nicely flexible for shoe, in spite of their "Dynamic Fascia Band." This technology is intended to replicate the fascia of the foot and create a ""windlass effect", but I couldn't detect any difference in practice. There is a little bit of spring at toe off, but no more than any other comparable shoe. I suspect there DF B does not extend far enough forward to have any meaningful effect, as it terminates under the ball of the foot.
- . The outsole is made of a variety of materials. If you look at the image above of the bottom of the shoe, then the white spots are hard rubber lugs that provide excellent traction on asphalt. These are a great idea, but are badly positioned, especially the lugs on the outside which are not going to be in contact at toe off. The black patch at the rear of the heel is a hard rubber outsole, but there are also patches of harder rubber that are color matched to the midsole. You can see them as the areas that are divided into squares on the picture above. This gives the RoadXTreme 220 some abrasion resistant material over pretty much all the contact surface.
- 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.)
- . The upper is an open mesh over most of the shoe, but a little thicker around the heel. There is no padding in the upper except for around the ankle opening. The apartment above the midfoot has some transparent plastic reinforcement bands, but these didn't cause me any problems.
- . The RoadXTreme 220 has a traditional tongue with tabs for the laces to hold it in position. The tongue has some reasonable padding.
- . The laces are thin and slightly rounded, but I had no problem with them coming undone.
- Heel Counter is quite innocuous, and is unlikely to cause much of a problem. . The
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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 Inov-8 RoadXTreme 220
4 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.
|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.