PRODUCT INTRODUCTION:1. Features&Applications:Our waterproof storage bags are made of 210T polyester taffeta (waterproof fabric), with waterproof roll-up, good water drop sliding on the surface, tear-proof, lightweight, wear-resistant and durable. Reinforced rectangular bottom design, large storage capacity, good load-bearing capacity, can withstand repeated use.The sleeping bag compression sacks are designed for outdoor activities like camping, hiking, cycling, and backpacking, as well as everyday travel and home organization. They can easily store items such as hats, gloves, water bottles, and small electronic devices. They ensure your items remain compact, dry, and well-organized.2. Specification:√ Material: 210T polyester taffeta (waterproof fabric)√ Color: Blue√ Overall Size: 17 x 9 IN/ 42 x 23.