External: 28 × 31 × 38 cm (length/width/height)

 PVC waterproof bladder, lie between temperature effect is good, easy to clean, super waterproof

Many pockets: the first bag (also have heat preservation effect) x1  

The grid side bag x 2; Inside cover grid bag multiply one
Folding: or so both sides have two fold belt, need not when can the bag after folding folding belt stick pack behind two magic affix to fixed folding shape.
Easy to clean: inclusion external dirty, dip in with the brush some washing powder gently brush is ok. Small stain with water can brush off. Bladder soiled only need to wipe with wet cloth can be.