Roblox hat - Material and fabric performance: This Roblox hat uses polyester as the raw material with textile technology. It has moisture absorption, heat resistance, alkali resistance and hygiene properties. Generally, polyester fabrics offer better moisture management and comfort. - Hygroscopicity in active wear: Teenagers and children who are active in sports, especially in summer, sweat during activity. Cotton fibers are noted for good hygroscopicity; when moisture increases with higher ambient temperature, the moisture contained in the fibre evaporates and distributes to maintain a water balance and keep the wearer comfortable. - Sun protection note: Cotton fabrics are said to have good heat resistance. When the temperature is below 110 C, only the moisture on the fabric evaporates and the fibers are not damaged. Therefore, cotton hats can better protect skin from the sun (ultraviolet rays). - Adjustable fit: Velcro closure for easy adjustment. Pull the buckle to adjust the strap, then close it. - Size and care: One size fits most, head circumference approximately 54-57 cm. Hand wash only.