I am selling this item because I purchased it from an EC site but never had the opportunity to use it. After attaching it to a backpack for testing, I stored it carefully. It has not been used in the field. Although it is close to a new item, please understand that it is a used item. 【SPEC/ Product Specifications】 Size: Height 20.3cm x Width 7.6cm, Circumference: 27.9cm Weight: 34.5g Material: DCH50, durable stretch mesh, and 1/8" high density foam Color: Black