The Helly Hansen Chelsea Evolution 2.0 safety boot features an Ortholite X25 Hybrid Footbed that's lightweight breathable providing long lasting cushioning and moisture management while using 20% eco-content in the formulationHelly Tech Waterproof MembraneDri Blaze Lining for additional warmth and comfortPrimaloft insulation - 400gMoulded TPU toe bumperMoulded heel overlayYKK ZipperPrimaloft Gold InsulationComposite safety toeMetal free nail penetration protection