【Perspiration】-- Prevent sweat from getting into your eyes during intense exercise and interrupting your cycling journey. 【Sweat Quickly】-- You can drain sweat from your head more quickly once equipped with the cycling hat. 【3-Dimensional Matching】-- Three-dimensional matching, more suitable for your head. Thermal transfer pattern, exquisite and environment-friendly. 【Moisture Absorption】-- Moisture absorption, perspiration, dust prevention, sun protection, bacteriostasis. 【Perspiration】--Hat with the head circumference of approx.50-60cm/19.7-23.6in.