Our Sleeping Bags can be used for 3 seasons. Moreover, these bags also have a weather-resistant design to keep you warm even in extreme conditions and prevent you from any dampness. Our sleeping bags are designed to ensure that after a tiring day of trekking, hiking, travel, you can get a good and relaxing night's sleep. Outer Cover Material-premium 210T Anti-tearing Polyester Fabric which is waterproof and Breathable; Lining Material:190T polyester pongee. Measuring (190 + 30)cm x 75 cm. 86.6" L x 29.5" W