Part of the Flex Collection, this lightweight bomber has four hook-and-loop areas for patches so you can change up your look each time you wear it. It comes with five patches including a nautical flag, letter L, nautical flag letter V, USA flag patch, D-Tec patch, and the calico. Standard Fit lightweight bomber jacket for men The L-2B Flex features Alpha s signature zippered utility/pencil pocket with the "Remove Before Flight" tag Fully reversible to Emergency Orange Two exterior and two interior pockets Shell is matte nylon with knit-rib collar and cuffs - The L-2B flight jacket was introduced in the early 1950s for use in light temperature zones (50 to 86 degrees F). Initially the bomber was only used by the U.S. Air Force which is why the USAF insignia was put on the sleeve. The flight jacket went through many specification updates including the removal of the oxygen tab, snap tabs and epaulets, along with the USAF logo as the jacket was eventually adopted by the Navy and other branches of the armed forces. The L-2B was replaced by the CWU-36/P in the 1970s although some ground crews and USAF personnel continued to wear it into the 1990s. Alpha s first DOD contract for the L-2B was in 1960 and continued until 1994. In the 1970 s Alpha made the L-2B for the commercial market but put the epaulets back on and added the Navy color.