DRY BAG SIZE ·2L–4.5×11 inch,D clap,without strap ·5L–7.5×15.8 inch,with single strap ·15L–9.5×21.7 inch,with single strap MATERIAL 0.5MM 500D PVC outdoor waterproof fabric FEATURES ·100% waterproof bags set guaranteed keeping all your gear protected ·Light,tough and very strong,comfortable to carry, tear, rip and puncture proof ·5L,15L include single detachable strap for crossbody or over the shoulder carrying HOW TO USE ·Fold 3-5times around the stiffening blade ·Close the buckle Track Man Dry Bag Will Offer You Comfortable Backpacking Rest or Camping Night