Heat Absorbing designThe black PVC material can efficiently absorb the solar energy to heat up the water inside the bag.It heats water to 113F (45C) in 3-4 hours with direct sunlight. Strong and Durable:With Strong strap for handle and strengthened plastic tubes.This shower bag is made by environmental friendly and leak proof materials which are safe to human health. High Water Capacity:this bath bag can carry up to 10 gallons water for showering outdoor,let you enjoy a better and refreshing shower anywhere. Heat Absorbing designThe black PVC material can efficiently absorb the solar energy to heat up the water inside the bag.It heats water to 113F (45C) in 3-4 hours with direct sunlight. Wildly Use: this camp shower is suit for outdoor camping, hiking, backpacking, self-driving, fishing or hunting and even can use it to wash dishes.It's also the best gift for for Men Husband and Father's Day