[simple and unique shell design] this sling bag inspired by geometry figure,made by 3 layer PU with soft surface ,Has a good buffering effect on external pressure, Slim and lightweight ,it works as an cool and protective way to carry your ipad or electronic product.[Waterproof material and zippers ] The anti-shock shell is waterproof,moreover,with three seal waterproof zippers(Top quality Smoothly YKK customize zipper).The main material of this bag is also waterproof .so it can protect your electronics well in a rainnyday.[Reasonable inner structure]Main pocket got a reasonable capacity (about 7L),can hold 1-2 T-shirts,B5 book,folded umbrella,500ml water bottle,Inner 9.7 inch ipad compartment with thickening sponge and electronics friendly lint.there is two slots for daily essentials which can be reach quickly,and inside there is also a zipper pocket for valuable things.The front zipper pocket for electronics or sunglasses,two slots inside helps make things organized.[Safety and anti-theft] Reflective stripe on front side of the shoulder bag can help to warn cars back or front.ensure the safely when travel at night.there is a hidden pocket on back,close to the body to prevent your valuable things or cash from any thief. 3D thicken shell outside is scratch resistant and protective.[convenient for everyday use] the bag back is Thermorytic and breathable honeycomb design,anti sweat and air permeability.one key buckle makes it convenient to change shoulders.it is suitable for all occasions. Like dating ,for school ,hiking,cycling or haning out or short trip.And it’s also an ideal gift for birthday or Christmas.[Size] External Dimensions: height: 8.3in* length:14.2in *width:3.53in,weight:1.23lb, it’s a perfect everyday sling bag for your daily necessities.