High Quality Material: Cotton Linen Blend & Advanced Technology Canvas with Adjustable Thick Shoulder Straps, Ventilate and Comfortable. Contains : 1Pc Gymsack / Backpack, 13" X 18" / (33cm X 45cm), Two Sides Printing Cinch Pack with Interior Zippered Pocket to Store Phone, Wallet, Jewelry, Key or Other Private Items. Stylish & Durable : Our Gym Sack Pack are Available in Multiple Vibrant Colors And are The Perfect Addition to Your Fitness Gear Collection and Optimal for Any Indoor or Outdoor Activities Also A Great Gift for Your Friends and Family.