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