The size is 30 x 30 cm. The fabric is water-repellent. The mat inside uses silver mat, so it can be used even in winter. Uses: Survival games, outdoors, camping, work, etc. Discounts are not available due to shipping costs. Please comment before purchasing. I will create a dedicated listing for you. Discounts are available for combined purchases with other items I have listed. JGSDF, JGSDF camouflage, Japan Ground Self-Defense Force Military, survival game Personal equipment, Multicam Camouflage, butt mat Unnecessary