Approx. W290 x H410 x D250 (mm) Approx. 640g Front: High-density 66 nylon oxford (back: acrylic coating) Part: Cotton back satin Back: Nylon ripstop (back: cotton bonding) [Main B4 size (button closure)] Open pocket (B6) x 2 [Front] Button closure pocket (B7) x 1 [Included pouch ]Drink holder type pouch (S) *Pocket type pouch for 350ml plastic bottles *With detachable string [Shoulder belt] Length approx. 59-103cm