Tuff-n-Lite material is ounce for ounce up to 15 times stronger than steel, but it's as soft and flexible as cotton Core fibers combine stands of Dyneema, Spectra, Kevlar, Twaron fiberglass and stainless steel Soft and ventilated against skin but are strong enough to resist abrasions and heat Will not compromise when wet or exposed to ultra violet light Not affected by disinfectants or common household bleaches Helps protect against chafing and blisters while riding Provides insulation while riding in colder temperatures Kevlar is a registered trademark of Dupont Corporation