The fabric is made of durable tarpaulin and is water-resistant, so it can be used at the beach, riverside, poolside, or on a boat without getting the contents wet from minor splashes. Also, if you put wet items inside, water will not leak out, and your other luggage will not get wet. The size is M, which is 55cm long and 44cm wide. Colors are available in navy, black, yellow, white, and pink. The product is sold for ¥4980, but this time it is offered for ¥2,000 including shipping. Quantities are limited. The product is brand new and unused. Thank you.