Thicken Material,Tear-Resistant:This swimming bags is made of 420D high-density oxford fabric,much thicker than others. Also with enhanced seam and specially thickened bottom,It has better durability and can carry heavy loads of your personal stuff for school,gym,sports.Please don't worry that it tears apart. Lightweight but Large Capacity:With widen bottom(maximum width S-5.9",L-7.7"),this drawstring gym bag has large capacity to pack basketball,MacBook Pro16inch(only size L),football,adult sneaker,helmet,sports gears,etc.They can be folded to your hand size,only 160g(S),192g(L),lightweight and practical to be used as a school pe bag or gym sack. Wipe with Damp Cloth Fastening: Drawstring Rucksack Backpacks With 3 Pockets,Adjustable Wide Shoulder Strap:This pe bags drawstring has an inside anti-theft zipper pocket for your phones,wallet.The two side mesh pockets can pack water bottle,umbrella or towel. The wide shoulder strap is much easier to be adjusted,won't fell apart.It also reduces loading on your shoulder,Non-slip from your shoulder,make your journey more comfortable. Gift-3pcs Waterproof Small Storage Bags:Package comes with 3pcs small waterproof drawstring bags for seperating your shoes/wet swimming suit/dirty gym clothes,organizing your socks/underwears/cosmetics.The largest size can fit a pair of adult sneakers.very convenient and necessary in your sports or travelling Water-Resistant,Widely Used:string backpack is made of water resistant oxford fabric,protecting your stuff dry and clean. It can easily be cleaned by using a wet cloth to wipe dirt,stain. You can use it in most of your occasions like swimming,gym,school,hiking,shopping,travel,etc. 2 sizes with 4 colors for option,very practical for whole family member.