Aspire Crew Size:X-Large starting early is the key

starting early is the key to teaching your little ones the joys of riding a bike

For all road and MTB drive trains

Laser-cut design contacts the chain at three points

Double-Wall Vacuum Insulation: Temperature defying chill

Aspire Crew Size:X-Large starting early is the keyThe Aspire offers a thin, breathable feel and firm compression for enduring performance on runs, rides, and more. Engineered with moisture wicking fibers, it keeps feet and ankles dry, secure, and supported. FEATURES: Engineered with an ultra thin profile to deliver unparalleled fit & feel Signature Olefin fibers wick moisture, keeping your feet cool, dry, and blister free Grips the contours of your feet to support the arch and help reduce fatigue