Moisture-wicking base layer with integrated D3O insertsThe Women’s Baseframe Pro provides moisture management, cooling, and protection in a single low-profile unit. Designed to be worn under your jersey, it provides EN1621-1 level 1 back and shoulder protection as you rip through the rough stuff. Its world-leading impact protection doesn’t sacrifice your ability to move freely on the bike and is designed to contour and flex with your ride style. Removable CE EN1621-2 Level 1 Certified D3O® Viper Stealth™ back insert features world-leading impact protection technology Large perforation and flex grooves in the back foam contours and flexes with rider movement EN1621-1 Level 1 D3O® shoulder inserts for additional protection Body heat activates (softens) the polymer to conform to the body Moisture-wicking, open stretch mesh for breathability D3O® inserts are removable for easy washing Note: No technology or product can fully prevent the risk of injury or death100% nylon elastic mesh