Made with durable, shape-retaining cotton canvas. The product is washed after processing to give it a soft and natural texture. 100% cotton Size M UV protection rate: 90% or more High level of UV protection, 90% or more, even for white fabrics. You can use it with confidence for outdoor activities. I bought it to go outdoors, but I have stored it without using it even once. Color: Blue系 (Blue-based) Stains, tears, odors, etc.: None