The backpack have large capacity, oxford fabric material handiness and waterproof. Breathable stereo honeycomb back pad keep back dry. Whisties and compasses increase the safety of travel.Features:Modern business style, smooth cutting, black color, fashion and resistant to dirty.33L large capacity can pack all your electronic devices and daily necessities.12 types acceptable interlayer, make your belongs in order.2 digital isolation layer, protect your electronic devices.Oxford fabric material is handiness and waterproof.The lord bag& 39; open angle up to 180 degrees, convenient to take and store belongs.SBS zippers increases durability, and gives luxury look.Adjustable chest strap relieve shoulder and neck pressure.Breathable stereo honeycomb back pad and shoulder strap keep back dry.Survival whistle and compass increase the safety of travel.Inner USB cable allows you to charge your mobile phone when you moving.Back have anti-thief bag, keep your belongs far away from lose.Specifications:Brand: MARK RYDENModel: MR9031Y_SJ00Color: BlackCapacity: 33LOpening Model: ZipperMaterial: Oxford FabricStyle: BusinessShoulder Strap Quantity: 2Function: Waterproof, Breathable, Wear-Resistant, Anti-Theft, Load Shedding, Anti-KnockItem Weight: 1200g / 42.33ouncesItem Size: 500 * 320 * 160mm / 19.69 * 12.60 * 6.30inPackage Weight: 1340g / 47.27ouncesPackage Size: 510 * 350 * 80mm / 20.08 * 13.78 * 3.15inPackage List:1 * Backpack