Vanaheimr Large Capacity Cooler Backpack Outdoor Insulated Camping Picnic Leakproof Lunch Bag 1. Material: Oxford cloth + polyester 2. Capacity: 36-55L 3. Occasion: picnic, travel, outdoor, camping storage 4. Weight: about 460g 5. Size: about 30 x 18 x 44cm 6. Note: shipped only the backpack, no other items are included Features: 1. Made of waterproof Oxford cloth, lightweight and durable, scratch-resistant and wear-resistant, protect the internal items 2. Long-lasting heat preservation and cold preservation, lined with insulating aluminum foil material, locking the temperature, to ensure that the food is fresh, waterproof and anti-fouling easy to clean 3. Outdoor portable insulation backpack, heat insulation and waterproof, practical large capacity, a variety of fruits, drinks, food can be easily stored 4. Multi-layer external storage bag, reasonable partition, the items are categorized to carry, easy to access 5. Thickened shoulder straps with breathable mesh design, comfortable and decompression, easy to carry and effectively relieve fatigue 6. Sturdy zipper, smooth pulling and closing without jamming, and the back strap is reinforced with stitching to enhance the load bearing capacity 7. Reflective strips design, to protect the night safety travel, shoulder straps strong buckle, adjustable length according to your height