Diem litetech jacket mens the diem litetech is perfect for all year round use with a technical spec of 5000 hydrostatic head makes this one of the most waterproof jackets available features include an outer shell 100 nylon 5000 water resistant fully taped seams waterproof zips adjustable hood adjustable hem and discreet branding diem litetech jacket mens jacket diem branding waterproof adjustable hood camo small