AqtivAqua Polarized Swimming Goggles || Swim Workouts ~ Open Water || Indoor/Outdoor Line BETTER VISION ~ Polarized Lenses increase your visual comfort since the eyes aren't constantly challenged by glare, thus making it easier to view objects in bright conditions. Enhances clarity of vision and contrast for ground level objects and for seeing into water. Reduces eyestrain. Conveys colors faithfully ~ Wide Polycarbonate Lenses with Anti Fog coating and 100% UV Protection (Cat3 UV400 Standard) for the best 180 field of view and undistorted optics above water and underwater MORE COMFORT ~ Ultra-Soft Silicone Double Gaskets are designed to expand and contract to hug the unique contours of a swimmers face, and achieve the right level of suction without applying excessive pressure around the eyes HIGHER VALUE ~ For a Limited Time only, this offer includes the Exclusive AqtivAqua Designer Case (Sold separately on Amazon at $10.95) SUPERIOR ANTI SLIP DESIGN ~ Unlike other single strap goggles, our Split Strap Design has no trouble in ensuring a fixed position of the goggles on the head even during the most vigorous swimming. In addition, the One-Click system means that adjusting the size of the strap is easier, faster and can be done even during swimming 12 Month Warranty and our Best Customer Service. If for any reason you are not completely satisfied with the product, we will offer you a full refund, no questions asked