riser sleeve

例句：

1. 1. She wore a zipper sleeve to keep her hands warm.
   她穿着拉链袖套来保暖。
2. 2.The jacket has a zipper sleeve that can be easily adjusted.
   这件夹克有一个可轻松调整的拉链袖套。
3. 3.He put on his zipper sleeve and went out for a bike ride.
   他穿上拉链袖套，出门骑自行车去了。