Please check our other listing in a size L. Discount available for both.
The image shows U.S. military chemical protective trousers in a woodland camouflage pattern. These are overgarment pants designed to be worn over a standard uniform to protect against nuclear, biological, and chemical (NBC) agents. 
The pants are part of the Joint Service Lightweight Integrated Suit Technology (JSLIST) system. 
They feature built-in suspenders and adjustable cuffs. 
The material is non-flame resistant (NFR), with an outer shell typically made of a nylon and cotton blend.