Bag size Medium Capacity 20-35L Internal structure of the bag ID bag, mobile phone bag, laminated zipper bag, zipper pocket, computer pocket, camera pocket Open cover zipper Applicable gender Neutral / male and female Material Canvas with lock No No rain cover No Function Breathable, anti-theft, wear-resistant, lightening, anti-vibration, processing method, soft surface Hardness pattern pattern solid color printing LOGO can Style leisure lining texture polyester Number of shoulder straps, two roots, popular elements, weaving, lifting parts, soft handle Type of outer bag Digging bag Luggage shape Vertical square type With or without tie rod No Color black, black 1, black 2, black 3, black 4