The Field Armor™ compression arms are comprised of a poly stretch mesh chassis with Kevlar™ and D3O® reinforcements. Designed to be worn under your normal riding jacket, they provide additional motorcycle-specific coverage. Features DUPONT™ KEVLAR® abrasion panels Stretch HYDRADRY™ moisture wicking chassis D3O® inserts Stretch Underlayer fit Material The stretch Hydradry moisture wicking chassis is combined with, D3O impact protectors, and DuPont Kevlar abrasion resistant paneling. HydraDry™ The sweat wicking Hydradry chassis map the contours of your body to help reduce friction and chafing while providing great range of motion. Kevlar® DuPont™ Kevlar® Aramid fiber is lightweight, durable, abrasion resistant and has extraordinary tensile strength making it deal material for this low profile garment. D3O® Impact Protectors Includes D3O® in the impact zones (Elbows and Biceps). D3O® unique technologies provide both enhanced protection and a versatile, flexible material for a host of shock absorption and impact protection. Delivering the most flexible and discreet protection on the market, D3O® consistently outperforms traditional foam-based materials.