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The Sparco Nomex Boxer RW4 (XL) is a Nomex boxer-style undergarment from Sparco serving as a close-fitting base layer. Marked RW4 and sized XL, it offers low-profile coverage when a Nomex underlayer is specified by the product title. The overview emphasizes fit, sizing, and Nomex identity so shoppers can match the RW4 boxer to their needs.
Sparco Boxer RW4 XL
