Check the listing for details. FROG XGO Grid Fleece Thermal Pant, Used. Width: 10, Condition: New with defects. Listed at 19.95 USD. XGO Grid Fleece Thermal Bottom, Used The USMC Grid Fleece Thermal Pant know as F.R.O.G. (Flame Resistant Organizational Gear) is a standard issue mid layer thermal bottom that will keep your warm while being highly breathable with no-drip, no-melt technology. Made from Polar Tec grid fleece by XGO to be used as part of the Extended Cold Weather Clothing System (ECWCS) it offers flexibility, warmth, and comfort in most conditions. The Polar Tech material is made in a grid fleece pattern to be warm and maximize breathability. A combat proven thermal mid layer top with no-drip-no-melt protection makes it great for work hazards as well as the outdoors. Features & Specs USMC issue PolarTec grid fleece Manufactured by XGO Comfortable and breathable Elastic cuffs