Heavy-Duty 600D Polyester Construction - For superior abrasion resistance. Fixed Mesh Comfort Lining - Lightweight inner lining that promotes breathability. Full-Length Zip Closure for Easy Access Elasticated Waist - Elastic at the back of the waist for optimal fit. Elasticated Cuffs - Found both on the sleeves and the legs of the racing suit, the elasticated cuffs provide comfort.