Moldable nylon and micro fleece NOSE GUARD protects your beak from burnin' in the harsh atmosphere of the high mountains, on highly reflective snow slopes, on the water and at the beach. Fits easily on all sizes and models of sun glasses, glacier glasses and goggles and is held in place by small hook & loop strap. Affords full protection from UV and lessens the need for greasy sunscreen products. Waterproof, washable and transferable to any eyewear. Measure from center bridge of your glacier glasses or goggles to the tip of your nose and go up to the next size in inches. This item is sold on a non-returnable basis.