... Bag. Inner One zipper inner pocket two Small pocket(put books, documents and mobile phones,etc). Side Two high capacity side ... ,ext. Back Streamline strap ,Health cooling type back-pad. Applications School,Sports,Travel,Decoration,Camping,shopping. In conclusion Beautiful, generous, bright ... development. (8) It is the best choose to gifts and school. (9) the Method of proper use:Use two shoulder straps ...