Calcutta Boulders Sunglasses Lens Color:Blue Mirror This extra-large AutoFlow gravity filter

This extra-large AutoFlow gravity filter system delivers 10 liters of clean water fast-all while you set up camp

identifying specific audio characteristics and eliminating ambient noise and echoes

Easy Closure

Features: -Shatter-proof aluminized glass mirror (no discoloration) -Mounts on either side of helmet(wide adjustment range) -Mirror and/or arm can be detached from helmet mount -Adhesive-backed plastic fan-plate fits most helmets

enhancing the aerodynamic effect and easy maintenance

Calcutta Boulders Sunglasses Lens Color:Blue Mirror This extra-large AutoFlow gravity filterHave better visibility of what's happening below the water's surface with Boulders. Mirror lens reflect light from your eyes offering extra protection. Boulders Sunglasses Features: 100% UV protection Corrosion resistant polarized lenses with extra lens coating to reduce mirror lens flaking 1. 0mm Triacetate (TAC) polarized lenses Fade resistant frame Integrated hinge will stand up to repeated use Authentic Calcutta logo 1 year limited warranty