Form-fitting with a flexible sternum strap construction that's comfortable for both men and women, the Salomon S-Lab Advanced Skin3 5 Set Pack carries 32 oz of hydration between dual front-riding Soft Flasks. The lightweight design uses an Advanced Skin stretch fit with two Y-shaped sternum straps for an adjustable, secure fit. A large rear pocket can carry light apparel, while an insulated sleeve offers an option to hold a 1.5L reservoir (sold separately). A kangaroo pocket in the back can be accessed from either side, while several small stretch mesh compartments on the front provide easy access to nutrition, apparel, and essentials.