When traveling, the backpack space is tight, you can use this product to compress the sleeping bag to save space. Features: Drawstring design, quick and convenient to compress. Thanks to the ultra light designed, its lightweight to carry, fine for carrying a small sleeping bag, laundry, clothing, bedding or other sundries in outdoor activities. Made of fine quality 210D oxford cloth, more breathable and practical, with strong wear and tear resistance and portable with water resistant function. The seam is neatly reinforced, more practical. Fine ultralight stuff sacks for camping, backpacking, backcountry treks, motor homes, cabins, and more. Specifications: Color: black, green, blue, orange (optional) Size: S,M,L,XL (optional) S: Capacity: 8L Item size: 480 * 180mm / 18.9 * 7.1in Item weight: 80g / 2.8ounce Package weight: 90g / 3.2ounce M: Capacity: 15L Item size: 530 * 220mm / 20.9 * 8.7in Item weight: 90g / 3.2ounce Package weight: 100g / 3.5ounce L: Capacity: 25L Item size: 630 * 260mm / 24.8 * 10.2in Item weight: 120g / 4.2ounce Package weight: 130g / 4.6ounce XL: Capacity: 35L Item size: 670 * 300mm / 26.4 * 11.8in Item weight: 140g / 4.9ounce Package weight: 150g / 5.3ounce Package size: 300 * 200 * 50mm / 11.8 * 7.9 * 2.0in Packing List: 1 * Compress Bag