Swiftwick Vibe Zero Vibram Traction Lug Removable rigid enclosed shell to

Removable rigid enclosed shell to improve aerodynamics or for protection against cold and rain

Highly compact geometry with a small frontal area

Made with a unique 4-way stretch woven canvas-like material

and more high-quality recycled materials than ever before

The all-new Cloudflow

Swiftwick Vibe Zero Vibram Traction Lug Removable rigid enclosed shell toASPIRE features firm compression that hugs the contours of your feet supporting your arch and helping to decrease fatigue, every step, every mile. The compression in higher cuff heights stabilizes leg muscles and boosts circulation, reducing fatigue during extended activity. The thin, breathable design provides maximum ventilation and a barely there feeling, while moisture wicking Olefin keeps your feet dry and blister free, so you stay comfortable