The Alpinestars AMT Thermal Liner is a stand-alone, thermal mid layer which is designed to be warn under the AMT-10 Jacket.Made of technical lightweight 3L membrane ripstop chassisHighly insulated with 100g Primaloft of body and 80g Primaloft of sleeves2 zippered external pockets and 2 internal mesh pocketsWarm, packageable and comfortable with a modern sleek styleThe Alpinestars AMT Thermal Liner is engineered to provide freedom of movement and premium comfort. This liner is made of technical lightweight 3L membrane ripstop chassis, with a stretch omega shape of Arctic fleece in the high flex zones that extend along the side of the torso to the upper back and connected to the inner sleeve. The liner is highly insulated with 100g Primaloft on the body with 80g Primaloft on the sleeves which helps to keep the rider warm and regulate thermal comfort, while at the same time being compact, highly flexible and keeps the water and moisture out. This jacket has 2 zippered external pockets alo