1.Two color combinations 2.Top big opening closed in 10# plastic zipper with two pullers 3.One front pocket and two side pockets,all in 10# plastic zipper 4.100% polyester strong,adjustable shoulder strap 5.All metal hook and buckle 6.All white fabric piping 7.Color available: all 8.Logo: customer's logo is acceptable. 9.With two compartments which is much convenient for outdoor sports for packing sports wear or shoes etc. 10.Customer's own design is welcome.