Thank you for viewing. This is a HOT BISCUITS cap. I am selling it because it no longer fits. It's made of mesh material for good breathability. The adjustment band at the back of the head is Velcro, so it can be adjusted to some extent. The Velcro sticks properly. There is a rubber string to prevent it from being blown away by the wind, but the rubber string shows signs of deterioration. Please check the condition in the photos. - Brand: HOT BISCUITS Miki House - Color: Blue/Green - Size: LL - Features: Mesh material - Genre: Hat Cap