Eight Sizes – Cocoons are available in eight sizes to completely fit over most eyewear styles. Is Slip Stream (LX) the correct size? The Slip Stream (LX) fits over eyewear not exceeding 144 mm wide x 46 mm high. Visit the Cocoons store for additional options and sizes. Fits Over Prescription Glasses – Designed to comfortably fit over most eyeglasses without pressure or slipping. No need to remove your prescription lenses to enjoy sun protection. Polaré Polarized Lenses – High-performance polarized lenses eliminate glare and provide crystal-clear vision with 100% UVA/UVB protection. Ideal for driving, fishing, or outdoor adventures. Full Wraparound Protection – Patented frame design with integrated side shields and top/bottom light blockers prevents peripheral glare and enhances eye comfort in bright environments. Customizable Comfort – Lightweight frames with Flex2Fit adjustable temples allow for a snug, personalized fit that stays secure all day—great for both men and women. The Cocoons Slip Stream sunglasses are a stylish and high-performance option for adults, offering 100% UV protection and a polarized lens system with a flash silver mirror coat to reduce glare. The frames are made of a clear TR-90 chassis with a unique Onyx finish, and are designed to fit over existing glasses. These sunglasses are lightweight, durable, and feature a cat-eye style with soft touch, textured frame arms. The Slip Stream sunglasses come with a lifetime warranty, case, and lens Duracloth for added value and protection. They are FDA registered and meet the rigorous standards of being classified as an active medical device, making them a great choice for outdoor enthusiasts and eyeglass wearers.