The J68 fit block is built around a precisely engineered gusset and sleeve. This allows for superior range of motion, even without the traditional (often leak enabling) action back pleat. The centre front storm flaps were also re-thought and are set up to provide a plethora of wearing options. This includes the unorthodox secondary collar zip which allows for complete closure when fastened. Detached entry lower pockets deliver high-volume storage both fore and rearward of their zip openings.