The Dakine Hybrid NRG windsurf waist harness offers total support and performance with a technical foundation built on Dakine's longtime windsurf heritage. This low-profile waist harness features a hybrid dual-density pre-curved support structure with built-in memory foam pressure point relief zones combining fit and comfort. Details: Narrow profile fit, push button windsurf spreader bar, freedom shape spreader bar pad, stainless steel spreader bar, hybrid dual density pre-curved support structure, two year limited warranty. XS: 28-30'' (71-76cm) SB 8'' (20cm), S: 30-32'' (76-81cm) SB 10'' (25cm), M: 32-34'' (81-86cm) SB 10'' (25cm), L: 34-36'' (86-91cm) SB 10'' (25cm), XL: 36-38'' (91-96cm) SB 12'' (30cm). Material: Marine Grade Vinyl, Stainless Steel.