A cut-off, battle jacket, battle vest or kutte in heavy metal subcultures, is a type of vest or jacket which originated in the U.S. military, specifically the Army Air Corps, where pilots and other aviation personnel would collect patches or other insignia to put on regulation bomber jackets or flight suits. The practice continued within the biker subculture and auto racing subculture and later found popularity in punk and various heavy metal subcultures. Biker, auto racing, metal and punk subcultures differ in how the garment is prepared, what decorations are applied, and how this is done.

Cut-offs are usually made from leather or denim jackets with their sleeves removed, or cut very short, and often adorned with patches, badges and painted artwork that display motorcycle club affiliations known as colours, or alternatively band names, political affiliations, beliefs, or sexual acts performed.

In the 1970s and 1980s, cut-offs were almost always blue denim. Thrash metal fans favoured heavily washed denim, while members of one British motorcycle club bleached theirs until they were almost white. From the mid to late 1990s, some punks and metalheads have worn multi-pocketed hunting or fishing vests, both in plain colours and camouflage patterns, and leather cut-offs—always popular with punks, and with bikers in recent decades.