Sparco Delta RW-6 Fire Resistant Racing Underpants - FIA 8856-2000Sparco's Delta RW 6 line of fire retardent underwear is constructed using a "body size" process wherein the garment is woven as a single piece with no seams at the sides. This process allows for the elasticity to be customized throughout the shirt, offering a second skin fit for superior comfort under the racing suit. A mesh structure is strategically applied to increase comfort and breathability in specific areas of the shorts. Elasticized, ribbed