These Shield III style Sunglasses by Bobster are durable, high-quality sun glasses for men and women, and are great for motorcycling, skiing, snowboarding, running, and many other demanding activities, and for generally looking good.. These high quality sun glasses feature a "frameless construction", making them lightweight and non-obstructing of peripheral vision. These high quality sunglasses have lenses made of precision made, impact, fog, and scratch resistant polycarbonate nylon material that exceed the ANSI Z87 standards for high-velocity and high-mass impact protection with shatter resistance greater than most of the brands out there. This quality eyewear has closed cell foam for blocking wind and particulates from your eyes. Includes microfiber case and removable strap. These are a great, sturdy pair of sunglasses for women or men, and have top-notch quality that's hard to beat. Lifetime warranty against manufacturing defects. BOB-ESH301