We're optimistic that this is going to be the best Inspire model in many, many years, as version 21 gets a big update in several ways...
-A wider last (3mm) means a more stable foundation
-2mm of extra foam in the midsole the placement of the wave plate deeper in the shoe so that it's not quite as noticeable
-Overall, a softer yet more stable ride. Can't ask for anything more than that!

12mm drop
8.8 oz