FeaturesMARATHON SESSIONSOuter material: CHAMPION STRETCH - 93.2% recycled Nylon, 6.8% SpandexNeoprene: FREEMAX SUPER-STRETCH NEOPRENEInner material: PRIMALOFT WARM - 37% polyester, 7% recycled Spandex, 56% recycled polyester PrimaLoftConstruction: Hooded jacketThickness: 1mmOpening system: PulloverExternal seam detail: GBSAqua Alpha glue details - water-basedComposition 93.2% Recycled Nylon, 6.8% Spandex