The size is 30 x 30 cm. The fabric is water-repellent. The mat inside is silver mat, so it can be used even in winter. Usage: Survival games, outdoors, camping, work, etc. Discounts are not available due to shipping costs. Please comment if you wish to purchase. I will create a dedicated listing for you. We offer a discount if you purchase other items at the same time. JGSDF, JGSDF Camouflage, Japan Ground Self-Defense Force Military, Survival Game Personal Equipment, Multicam Camouflage, Butt Pad, Unnecessary