Adizero Prime X3 Strung - Blue/Footwear White-Blue Burst Size:US5.5 Altra's Standard Footshape™ fit gives

Altra's Standard Footshape™ fit gives you plenty of room

What's different

Precision-mapped panels

the UHMWPE grid mesh pocket housed at the rear can stow things without getting in the way

Adizero Prime X3 Strung - Blue/Footwear White-Blue Burst Size:US5.5 Altra's Standard Footshape™ fit givesThe adidas Adizero Prime X3 STRUNG is an elite running shoe built for speed, and boy does it look like it! Featuring the unmissable STRUNG upper, this textile innovation has transformed performance data into a dynamic material tuned to athletes needs. Prime X3 STRUNG comes equipped with 3 layers of adidas' LIGHTSTRIKE PRO cushioning combining for a total stack of 50mm. A large void at the midfoot shows just how committed the design team was to