adidas Adizero SL2 Reviews

Returning the SL2 after 17 miles: at 6'2" and 195 lb it felt too firm with too little under the mid and forefoot, tight in the midfoot, and not good enough at easy pace for a daily trainer.

At 157 lb the SL2 is super soft and well isolated as a daily trainer, though it runs narrow and slightly short.

The SL2 is softer than the Boston 12, a little narrow and short (fine half a size up); on a 5K it was light, bouncy and fun though not amazing.

With about 60 km in them, mixing easy runs, intervals and fartlek during marathon training, they found them comfortable, versatile and responsive when the pace picks up, with a padded ankle collar and a grippy, solid outsole. They would size up half a size, as the forefoot is not roomy, and the cushioning is plenty soft for most but not as soft as they personally like. Not an aggressive speed shoe, but a good one-shoe option for beginners and easy runs up to about 20 km.

With standard lacing their foot felt cramped and numb in the SL2; skipping the second eyelet helped, but they'd only use it for daily miles, not long runs.

A 60 kg runner's first 6K in the SL2: decent cushioning and a nice spring at easy pace, but laces too short, a narrow midfoot that made their ankles work, and a toe box that felt crushed on one foot.

Ten miles into the SL2, it's a good shoe; it's a bit narrow for their near-E-width feet, and relacing to skip eyelets made it more comfortable.

Two runners tested them, one with over 30 miles including a 12-mile run that finished at half-marathon pace. They liked the bouncy, smooth ride from the Lightstrike Pro core, the light feel, the snug race-like lockdown and the grip. Criticisms: the thick tongue and heavier mesh ran a little warm, one pair creased and irritated a toe, there is no stability, and they do not think it suits wider feet. They found it hard to beat for the price.