160005-471Product2017 Nylon Helmet Bag
History Helmet bag
The US Air Force helmet bag is described in its military-standards
document as a container with a rounded bottom, made from a heavy,
olive-green, water-repellent nylon material and padded with quilted
rip-stop nylon, measuring 20 inches in height and 19 inches in width. It
was designed to protect a flyer’s helmet from scratches when not in use
and its development corresponded with the innovation of hard-shell
helmets in the 1950s.
The helmet bags that are designed today are generally adopted from a model that was introduced in the late 1960s. Like older versions, it features a large interior compartment for holding an aviation helmet, including radio and earphone attachments. New additions were two external pockets on the front of the bag, closing with snaps and hook-and-loop fasteners, and one inner pocket at each end of the liner, for storing small equipment and personal belongings. The bag had a top opening with a zip closure and two matching cushioned handles.
function Water-resistant & waterproof
Modern water-resistant garments are coated or laminated on one side,
commonly on the inside, to hinder rain and moisture from penetrating the
textile. A water-repellent finish on the outer surface protects the
fabric from getting wet-through, which in turn prevents the body from
cooling. The coatings are made with minimal pores that keep rain out but
allow sweat vapour to escape, to avoid overheating and dampness.
‘Waterproof’ denotes a higher functionality and is achieved by sealing
the garment with taped seams and water-proof zips.
The modern water-proof raincoat, generally known as a ‘mackintosh’, dates to the early 1820s and was sewn from a rubber-laminated three-layer fabric. Plastic rainwear, such as vinyl-coated nylon, was introduced on a mass-production scale after 1945. Through history, and throughout the world, water-resistant clothing has been made using seal and whale intestines, grass and leaves, animal furs, natural-rubber impregnation, oiled silk weaves, linen canvas and waxed cotton. The multi-functional rainwear and outerwear of today relies on the invention of lightweight and breathable synthetic coatings in 1970.