Features： 1、Automatic heat absorption design. Just face the dark green side to the sun and let the sun sufficiently shine on the bag. The water in the bag will be heated and it can be used in about 3 hours. 2、Large capacity design. The 40L water space is designed to meet your water needs. 3、Environmentally friendly PVC material, non?toxic, non?polluting, environmentally friendly and durable. 4、Large water inlet, retractable shower head, enhanced sealing method, bring you maximum convenience. 5、Wide range of applications, suitable for outdoor hiking, camping, travel, etc. Specification： Condition: 100% Brand New Item Type: Shower Bag Material: Environmentally Friendly Non-Toxic PVC Color: As Pictures Shown Product Unfold Size: Approx. 40x38x25 cm/15.7x15.0x9.8 in Weight: Approx. 480.0g Capacity: 40L Features: Fill up with hot water and can continue to rinse for about 10-15 minutes Instructions for use: 1. Before the first use, wash the shower bag with 1 teaspoon of soda water 2. Fill with water and place the black side up on a flat place to let the sun shine 3. It can be used after heating for about 3 hours (3 hours can make the water temperature rise from 15.5℃ to 40.5℃). Package List： 1 x Shower Bag 1 x Water Outlet 1 x Lanyard