How does the Hyperion 3 fit, and should I size up?
Stay true to size for length; the Hyperion 3 upper is slightly narrower than the Hyperion 2 but comfortable for medium-width feet. The 21-mile review specifically calls out the slightly stretchy knit upper and a narrower volume than the predecessor upper width and volume is slightly narrower compare to the Hyperion 2. Good enough for my medium width feet. Wide-foot runners should cross-shop because no wide width is offered; if you have always sized up in Brooks for width, skip this generation or compare with the Saucony Endorphin Speed which has more upper room.








