This is an ultra-lightweight running cap from Adidas Adizero. ED1661 2E5001 It has only been tried on once and is in excellent condition. It has a water-repellent finish and a lightweight design that can be folded and stowed in a pocket or bag. Laser-cut ventilation holes and a water-repellent finish provide a cool and dry wearing experience. It is quick-drying. Adjustable back strap and reflective print on the front. ▼Size Free (57-60cm) Brim length: Approximately 7cm Please feel free to ask any questions. Shipping will be done compactly folded. No claims and no returns, please.