From the sales site: "Minus 3°C" inside the clothing! Apparel that blocks the sun's heat and keeps you cool just by wearing it. This cooling functional material blocks the sun's heat rays and suppresses the rise in temperature inside the garment. By wearing it, the perceived temperature drops by "minus 3°C," and the light weight and thinness make you forget you're even wearing it, creating a comfortable environment inside the clothing even on hot days. Features moisture absorption and quick-drying properties. Shipped via mail service. White T-shirt made of 100% cotton, 2XL size, with a pocket. - Color: White - Size: 2XL (3L) - Material: 100% Cotton - Pocket: Yes Thank you for viewing.