Zipp Disc Valve Adapter (Black) variant-color-black-blue you can be sure the

you can be sure the fit won't sag and the color won't fade in the sun or chlorine

- Patented Ergo Air® X-Vent palm evacuates moisture and ventilates to keep - hands cool

moderately stiff R4 sole and single Boa® closure

An ergonomic 3D gasket perfectly fits your face to reduce pressure around the eye and improve waterproofability

including the innovative Multi In-Moulding technology guarantee a high level of safety and protection

Zipp Disc Valve Adapter (Black) variant-color-black-blue you can be sure theNew, synthetic elastomer gasket with 2X the holding power and 5X wear resistance of traditional gasket materials New, two stage seal design, improves sealing and stability on all presta valve stems Adjustable compression, user can tighten the cap to increase holding power by 4X and compensate for wear 15 degree stem angle reduces stress on the valve stem from pump hose 12. 0g