1. Material: 420D 84T nylon composite TPU coating
2. Capacity: 20/30/40L
3. Flat size:
- 20L: about 36 x 61cm
- 30L: about 42 x 67cm
- 40L: about 47 x 72cm
4. Folded size:
- 20L: about 23 x 46cm
- 30L: about 27 x 52cm
- 40L: about 30 x 57cm
5. Weight:
- 20L: about 430g
- 30L: about 550g
- 40L: about 630g
6. Description: only the bag, does not include other items in the picture

Features:
1. IPX6 waterproof, effectively blocking water leakage (Note: prohibit the mouth of the bag immersed in the water, the bag body can be submerged under the water surface when backpacking)
2. 420D 82T nylon, wear-resistant and scratch-resistant, composite TPU waterproof coating
3. Waterproof TPU material, dry inside, with high-strength elastic rope, can be hung outside the wet clothing
4. Waterproof folding membrane at the mouth, built-in wet and dry separation bag
5. Side can hang small objects
6. Thickened adjustable shoulder strap