Description: 1. Non-slip Headband, Absorb Sweat Well & Dry Quickly, Comfortable Using, High Elastic & Lightweight. 2. With the elastic band closure, it can be easily adjusted to meet your specific needs and ensure maximum comfort at all times while not too tight or not loose. 3. Perfect for outdoor sports, running, hiking, cycling, jogging, workout, yoga, exercising, gifts. 4. Fits those people who has size of head circumference (the circumference from forehead to the bulge at the back of the head) from 20.9in to 23.6in ( Note: Please check the product image showing how to measure the head circumference correctly.)