ラディクール　世界初放射冷却素材ランニングキャップ ブルー

这款帽子采用新型材料Radi-Cool，可在直射阳光下冷却而无需消耗水或能量。它还经过改良，更加柔软且不易起皱。

• The description claims that the material can cool under direct sunlight without consuming water or energy.
• The description claims that the material has a reflectance of over 85% and cooling radiation to reduce surface and inner temperature rise.
• The description claims that the hat provides UV protection with a blocking rate of over 99%.
• The description claims that the hat is water-repellent on the brim and body center, and breathable mesh on the sides.