For work in the scorching sun or outdoor activities! Protects your head from direct sunlight. You can soak it in water and put it in your hat, or freeze it. ◇ Can be used by children to adults [↓ Quoted from the product purchase page] ◇ Brand: User ◇ Model Number: U-R347 ◇ Main Unit Dimensions: (Approx.) Width 21 x Depth 21 x Height 0.5 cm ◇ Main Unit Weight: 0.02 kg ◇ Material ・ Outer: 100% Polyester (Coolmax) ・ Filling: 30% Bell Oasis, 30% Acrylic, 20% Rayon, 20% Polyester ◇ Country of Origin: China ◇ Although I took it out of the bag intending to use it, it has been stored at home unused. * Please refrain from purchasing if you are sensitive. * Some threads are frayed. ◇ Will be shipped via Yu-Packet Post Mini. * Please note that this is simple packaging.