Saucony Endorphin Speed 4 Reviews

They find the Endorphin Speed 4 more responsive and comfortable than the Boston 12.

Gabrielle Hondorp, despite disliking past Endorphins, found it light, comfortable and gentle on her shin-splint-prone legs. She notes a large arch gap and thin tread that may wear quickly.

Nick Harris-Fry calls it an exceptionally versatile shoe for training and racing. Some runners may want a softer ride with more forefoot foam on long, hard runs.

Shines at any pace and is a blend of v2 and v3. The first run felt mushy, but it won her over after 150 miles. The tongue bunches, the laces are too long, and the toe box angles in.

Has about 40 miles in the Endorphin Speed 4 and nearly 300 in the Speed 3; prefers the Speed 3 for slow zone 2 miles but finds the Speed 4 incredibly snappy and propulsive for tempo and track work.

After trying many brands says the Speed 4 is their ideal shoe: super comfortable, responsive and very stable.

First run of 10 miles at 7:45/mile in the Endorphin Speed 4: firmer, more responsive forefoot and stiffer plate than the Speed 3, true to size.

60+ miles covered, from easy runs to intervals and long efforts, including wet roads. They liked the secure, true-to-size fit with less heel rub than the previous version, the lively cushioned ride and improved wet grip. They found the knitted tongue and lace tabs flimsy, noticed some wobble when running sloppily, and one heel striker wanted more forefoot cushioning on long fast runs. A versatile do-it-all trainer.

About 100 miles in a week in them. They loved the light, breathable, secure upper and the bouncy, fresh-legged ride for steady daily miles and workouts, but found the toebox narrow (it aggravated an old friction spot), the heel flare awkward at recovery pace, and the cushioning going flat for a big, powerful runner on 2+ hour runs. Durability looked average to below, with the outsole worn through near 100 miles.