Topo ST-2 Review

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Topo have impressed me as the only shoe company that is producing consistently good running shoes. Their design philosophy is to produce simple shoes that are designed for the human foot. This is so simple and obvious it's hard to believe no one else is doing it. Altra come close, but their shape is a little exaggerated, and their toe box doesn't allow room for your toes to move naturally. The ST-2 is both a little lighter and a little better cushioned than their Fli-Lyte, itself a pretty good shoe. The ST-2 is not perfect, but the flaws are fairly minor, and the advantages are significant. It provides more than enough cushioning to get the benefits for Running Economy, it's close to zero drop, it's reasonably comfortable, and did I mention it's designed to fit the human foot? This means that there's room for your toes to splay naturally during toe off, and there is no attempt to manipulate your running stride with things like medial posts. It's one of the very few shoes where I've never even considered cutting the toe box open. I struggled with my rating of the ST-2, and it's come close to a "Best of the Best" rating, but in the end, it didn't quite make it. My final rating is "Highly Recommended," as I think the Nike Zoom Streak LT is a better shoe. (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.)

Topo ST-2 top
Topo ST-2 outside
Topo ST-2 bottom
Topo ST-2 inside

1 Characteristics

  • Cushioning . The ST-2 is reasonably well cushioned for its weight. While its cushioning-to-weight ratio is not up there with the greats, such as the Hoka Clifton or the New Balance RC5000v2, it does well for itself. The insole of the ST-2 is thicker than many shoes, which means it provides a greater portioning of the cushioning, with relatively less provided by the midsole. I found this made the ST-2 a little non-linear; the initial landing is softer, but later in the foot strike it seems to firm up. I'm not sure if this is a good thing or a bad thing, and I had no troubles running in the ST-2. I found it to be comfortable and otherwise quite smooth and even. I have some concerns with the longevity of the insole, especially as it's providing so much of the cushioning, and you may need to consider Replacement Insoles to extend its lifespan.
  • Drop. Most shoes have heels that are higher than the forefoot (drop), but the ST-2 has the forefoot slightly thicker than the rear. This "negative drop" is a little unusual, but I find I adapt to it pretty quickly. It's only about a millimeter so it's not a big deal.
  • Structure. The ST-2 does not interfere with your Running Form with medial posts or the like. I had no problem with the midsole bulging up under my arch or irritating my planter facia.
  • Flexibility. The thin midsole means the ST-2 is very flexible and moves naturally with your foot when running. It's possible a bit more stiffness and spring in the forefoot would improve Running Economy, but I like the natural feel of the ST-2.
  • Outsole. There's hard rubber outsole over move of the contact areas of the sole, with just a few patches of exposed midsole foam. After 100 miles (!60Km) I found no abrasion on the rubber patches, but there was some wear on the exposed midsole foam just behind the forefoot. This seems to be minor, and even if it wore away more I don't think it would be noticeable.
  • Shape. Topo shoes have the best shape of any of the shoes I've tested. The ST-2 has a roomy toe box that doesn't constrain my toes at all, allowing them to both splay out at toe off, and bend slightly during the flight phase. The Topo shoes are the nearest I've found to allowing my toes to more as they would barefoot. They're even better for me than the Vibram FiveFingers. (The founder of the company apparently worked for Vibram and was involved in their FiveFingers range of shoes.) The Topo's shoe shape is quite a bit better than Altra, whose toe boxes are overly stylized and exaggerated, as well as not having quite enough headroom or quite enough room on the side of the smallest toes. I sometimes find the tops of my toes can be irritated in Altra shoes, but not in the Topo.
  • Upper. The ST-2 doesn't have many seams, but it does have some thick overlays that reinforce the upper. These overlays are both inside and outside the main upper, which makes them more likely to rub. I didn't have a problem, but it's something to watch out for. I run with three layers of socks (a double layer Wright sock over a thin Injinji) so I'm less likely to suffer problems. If you want to run sockless, the overlays could well cause you an issue. There's also a seam where the tongue is sown in just behind the toe box that's rather more prominent than I'd like. Again, I didn't have an issue, but I can see it being a problem for some runners. There's almost no padding in the upper, not even around the ankle opening. This reduces the weight, but reduces comfort a little. The upper is mostly open mesh, so except for the overlays it's nicely breathable.
  • Tongue. The ST-2 has a traditional tongue that is has a tab to attach it to the laces. The tongue is nicely padded, which is odd considering even the ankle opening is bare. Personally, I'd rather have a bit more padding around the ankle opening and less in the tongue.
  • Lacing. The ST-2 has flat laces, but they are rather slick and I had a couple of times when they came undone mid-run.
  • Heel Counter. There's no heal counter on the ST-2, just a small tab of rubberized reinforcement to keep the shoe's shape when it's not being worn.
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2 A Comparison with other Recommended Shoes

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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 is my top pick. There are lots of great optimal running shoes, which provide just enough cushioning with light weight and minimal frills. The Streak LT doesn't have the best cushioning-to-weight ratio, but it has a shape that's closer to the human foot than most running shoes and it's one of the longest lasting shoes I've found. It's not as comfy as the Escalante above, but it's faster.
  • 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. I don't generally review trail running shoes, but check out the Hoka Mafate if you're after a shoe with remarkable abilities on a wide range of surfaces. If you want a Hiking Boot, then I love the Hoka Tor Ultra.
  • 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 A6 Review Saucony A6 Highly Recommended $100 8.2 6.1 9.5 17 21 4 5.0 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 Cloudracer Review On Cloud Cloudracer Worth considering $130 5.7 8.2 12.8 19 27 5 4.7 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
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
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
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
Saucony Kinvara 8 Review Saucony Kinvara 8 Best of the Best $110 9.3 8.6 13.4 26 31 3 8.0 5
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 One 3.0 Review Altra One Recommended $100 6.1 8.8 13.7 23 23 0 5.4 6
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
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 Nike RNDist2 Review Pending $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
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
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 5
Adidas Takumi Sen 3 Review Adidas Takumi Sen 3 Highly Recommended $160 7.7 6.6 10.2 17 21 4 5.1 5
Altra Torin 2.0 Review Altra Torin Worth considering $125 5.8 9.6 14.9 28 25 -1 5.5 4
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
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.