NIKE BACKPACK: The Nike backpack for men and women is a new twist on an old favorite with plenty of room for your gear. Durable shell features a new graphic along with additional pockets for extra-small item storage. POLYESTER SHELL: The polyester shell of this athletic backpack and school backpack features a dense weave for lasting durability over time. Elastic shell straps offer a stylish, athletic touch. ADJUSTABLE STRAPS: The adjustable shoulder straps create a customizable carrying experience with the women's and men's backpack. Padding in straps allows you to carry with comfort.