Man business pack, inner large capacity, multilayer design, make the things in order. High density oxford cloth material, waterproof, anti-fading. It is durable,wear-resistant, practical and delicate, meet daily travel needs.Features:Large capacity, inner multilayer space design.Durable zippe, smooth to open and close, durable and wear-resistant.Superior oxford cloth material, high density waterproof.External charge position, two-way charge interface, practical and delicate.Back breathable fabric, honeycomb type, included back anti-theft pocket.Adjustable shoulder strap, relieve pressure of shoulder.Specifications:Brand: Mark RydenModel: MR7510Color: Black, Gray (optional)Material: Oxford ClothOpen Way: ZipperHardness: Hard ModerateShoulder Strap: SinglePackage Weight: 490g / 17.28ouncesPackage Size: 320 * 180 * 120mm / 12.60 * 7.09 * 4.72inPacking List:1 * Chest Pack