MA-1 TT - Jackets.This version of the classic MA-1 flight jacket is perfect for warm temperatures.While the original MA-1 was designed to protect pilots from the harsh conditions of cold climate zones, the TT model was created to deliver the opposite:it´s light nylon construction and the absence of padding promote breathability while retaining the superior quality and versatility you expect from Alpha.The MA-1 TT Hood is similar to the MA-1 but this style has a detachable hood inlay and a patch on the chest that makes the whole look a bit more casual.