ESS Innerzone 1 / 2 Strap / 2-Piece Strap w/ Speed Clips Black. The 26mm-wide high-memory woven Nomex straps feature ESS's patented Speed Clips which make strap adjustment quick and easy even with gloves on. ESS Innerzone 2-Piece Strap 7400220 functions well with all major structural firefighting helmet designs and is compatible with the ESS Innerzone 1 and ESS Innerzone 2 mounting brackets. Key Features of ESS Innerzone 1 & 2 Strap / 2-Piece Strap 740-0220 w/ Speed Clips: NFPA Compliant Speed-Clip Straps 2-Piece Strap System 7400220 Strap System is compatable with: ESS Innerzone 1 Goggles 740-0264 ESS Innerzone 2 Goggles 740-0268 ESS Innerzone 2 Goggles w/ Nomex HeatSleeve 740-0269 Specifications for ESS Innerzone 1/2 Strap: Manufacturer: ESS Color: Black Package Contents: ESS Innerzone 1/2 Strap ESS 740-0220: Innerzone 1 / 2 Strap / 2-Piece Strap w/ Speed Clips Black