DURABLE WATER RESISTANT NYLON - Our unisex sling backpack is made of high-quality nylon and meshes. Durable, strong, sturdy, comfortable, soft, and machine washable, water repellent, and tear-resistant. Featured with delicate workmanship, bringing you excellent using experience. HIGH CAPACITY WITH MULTIPLE PRACTICAL POCKETS - 13.8x5.9 x3.9 inches sling bag, offering a large capacity for your needs. Our multipurpose casual daypacks come with many practical pockets - 1 main compartment is built in an inner pocket&2 mesh pockets, 1 front zipper pocket, and 1 strap pocket for easy access to small items. PADDED COMFORTABLE ADJUSTABLE STRAPS&BACK - The back of the chest crossbody backpack is padded with comfortable materials, which make you no burden when carrying. The comfortable back system, sweat-free and relieve fatigue. The comfy straps, strengthened with strong and sturdy stitching for durable use, are padded with thick foam, providing a fresh and comfortable carrying experience for your shoulders. PACKABLE & LIGHTWEIGHT - Our sling backpack bag can be folded into a small size and expanded to a large backpack. Lightweight(0.49lb) and portable, great for the gym, or traveling. Compared with other ordinary oversized sling bags, our chest bag adopts an upgraded design: reinforced strap, flawless string zippers, strap pocket, multiple organizations pockets, and perfect workmanship make it your best choice. MULTIPLE PURPOSES - Our travel hiking day packs are great for multiple purposes, like daily use, mommy diaper bag, shopping, walking a dog, camping trip, gym, biking, mountain bike accessories, short hike, a day at the amusement park or going to the gym. And use this daypack as a carry-on for hiking, travel, camping, fishing, mountaineering, backpacking, climbing, etc.