ballistic nylon
A tough, abrasion-resistant nylon fabric originally developed for military flak jackets; now commonly used in luggage, backpacks, and outdoor gear.
This bag is made of ballistic nylon and is very durable.
Variant with interpunct, also seen in product names and technical writing.
From English 'ballistic nylon'. The exact historical derivation is uncertain; the term refers to the fabric's original military application.