1.High Density 900D Oxford Cloth,Waterproof and rip proof fabric; 2.KAM Smooth Zipper,Anti-slip Durable and anti-rust zipper; 3.Strong And Neat Bartack,Can withstand heavier exteranal objects without tearin; 4.Large Area Of Velcro Position,Increases free personality diy space; 5.With Side Pockets,For water bottle and other stuff; 6.With Shoe Pocket,Give your replacement shoes a special storage place; 7.Wet Pocket,The pocket used water resistant lining for wet items; 8.Small Anti-theft Pocket,Keep your small valuable items safe and handy; 9.Luggage Strap,Can be directly fixed over the trunk bar; 10.Upgraded Back Design,Make carrying more comfortable;