CONSTRUCTION - This solar shower boasts a durable, four-layer construction for optimal heat retention and performance that includes a reflector panel, an insulator panel, a solar panel, and a water reservoir along with diamond ripstop fabric. CAPACITY - This summer shower has a large 3-gallon capacity and is designed to heat water fast in the warm sun. TEMPERATURE GAUGE - Easy-to-read temperature gauge to know when your shower is warm. The shower can heat up to 110 degrees in under 3 hours in direct sunlight. EASY FILL - Extra-large filling valve with twist-off cap; wide carrying handles; Velcro straps for soap and shampoo STORAGE - Rolls up for easy storage; covered by a one-year manufacturer