Comfort is key to performance, so the Pro Suit was designed to function comfortably on the bike and during the run. Stretch trim, comfort zip with inner flap, and a crotch flex panel are some of the details that go into making this a race day essential. Mini flatlock: Offers increased stretch and flexibility for ease of movement. Stretch ultra light trim: Enhances comfort. Crotch Flex panel: Increases the range of motion and provides flexibility. Aero Lazer band at thigh: Is a lazer cut, flat, smooth transition for improved aerodynamics and muscle support. Front, back and bottom reflective accents: Enhance visibility. 1743 cm comfort zip with inner flap: Zip is sewn so teeth pull away from the user to reduce abrasion and chafing. Inner flap protects skin from the zip.