Description: 1. Engineered with advanced airflow fabric to wick moisture instantly, keeping you cool and dry even in peak summer heat. No more sticky discomfort! 2. Our hyper-elastic memory fabric gently hugs your head 50-61cm without squeezing. Forget constant adjustments – stays put during yoga, runs, or all-day wear. 3. There are 6 delicate stitches at the top of hat, wear it on the head without any edges or corners, more comfortable and skin-friendly. 4. Moisture-wicking fabric quickly evaporates sweat, ideal for running, cycling, or trips. Folds compactly for easy storage. 5. Cooling summer caps beat the heat with a lightweight, airy design that keeps you comfortable in scorching weather. Product Details: Material: 57.3% nylon, 32.7% polyester, 10% spandex Color: 4 Colors Size: One Size Fits Most suitable for head circumstance 50-61cm Gender: Unisex, Men, Women Season: Spring, Summer, Autumn Package Included: 1/2 PCS * Summer Caps As pictures showed