A jacket part is an essential component of a jacket, and the crossword solutions for the term jacket part include LINING (6 letters), LAPEL (5 letters), SNAP (4 letters), ARM (3 letters), LINER (5 letters), VENT (4 letters), and SLEEVE (6 letters). The LINING is the inner fabric of the jacket, usually made of a different material than the outer fabric. The LAPEL is the folded collar of the jacket that frames the neckline. The SNAP is a fastener used to close the jacket. The ARM is the part of the jacket that covers the ARM. The LINER is an additional layer of fabric inside the jacket, often used for warmth. The VENT is a slit in the back of the jacket, usually used for ease of movement. The SLEEVE is the part of the jacket that covers the ARM from the shoulder to the wrist.