J1A was the first ever jacket designed by ACRONYM. Originally conceived in the years between 1999 and 2001, it is the progenitor of the Type 2371*, and of every other Acronym jacket that has followed. The newly engineered TensionZip flak pocket opening redefines what is arguably one of the most recognisable elements of this legendary jacket. It does this, not by merely altering its appearance, but by changing its functionality and improving its operation. The same can be said for the new freestanding Storm Hat (360 protection and hearing) and the zipless reloadable GravityPockets (smoother, faster, lighter). Fabric development is also iterative; the new smooth handed 40 denier face fabric is made from recycled nylon yarns, and laminated to Gore-Tex® with Paclite® Plus product technology (the 4th generation of Paclite membranes). Bucket hat included with jacket. Combine with 3A-1 or 3A-3TS for full INTEROPS functionality.