Features:1. The hat fabric adopts a unique woven structure, which quickly absorbs sweat and has a strong sweat-releasing ability. In particular, the bumpy effect like a football prevents the fabric from sticking to the scalp as a whole and has a better heat dissipation effect.2. Nylon ingredients, the ice effect is more prominent and more durable. And nylon is more skin-friendly and smoother. The wearing experience is better.3. The hat has good elasticity and fits all sizes. When you wear it for a long time, the resilience of the hat is still very good.4. After testing, the hat will not fade after washing many times, just like new.5. The weight is only 25 grams, which is very thin and can be worn on the head without any pressure.6. The product adopts ultra-fine plane wiring technology, which is exquisite and comfortable. It can be seen that there is no excess fabric at the seam, this is because we use the four-needle six-thread sewing method, which is more durable.Product Details:Material: 96.1% Nylon , 3.9% SpandexGender: UnisexWeight: 20 gramsSize: 54-60cm, most suitable for one sizeSeason: Spring, Summer, Autumn, WinterCleaning method: machine washable, do not use bleach