Men's 4F Fleece Jacket Red H4Z22 BIMP010 62S This men's 4F thermal jacket is the perfect layer under a ski jacket. Made of soft, lightweight microfleece with 4FWarm technology, raglan sleeves provide complete freedom of movement. A slightly longer back hem provides additional coverage. A stand-up collar with a zipper and a chin guard makes it an ideal second layer. Main material: 100% polyester