The first "anti-fatigue" boots that protect from the cold and are easy to put on (full zipper) The Parcours Iso are anti-fatigue rubber boots that insulate from the cold down to -20 ° C with their 4.5mm thick neoprene lining. Neoprene is a reference in terms of insulation; it contains micro-bubbles of air to improve the insulation of the feet and legs. With their tri-density rubber soles, Parcours boots offer comfort allowing you to walk further without getting tired. The damping cushions in the heels act as return springs, resituating part of the energy used in taking a step. With their adjustable tabs and gussets, these boots fit snugly to your legs. Fully zipped, making them easy to put on and take off. This rubber boot is handmade in France. Upper: comfort, resistance and flexibility Neoprene lining and insole: insulation and temperature maintenance Tri-density cushioned rubber outsole: shock absorption, stability and abrasion resistance Upper: primarily Gomma Plus natural rubber Lining: 4.5 mm neoprene Full zipper Insole: 4.5 mm neoprene Outsole: 3 density natural rubber shock absorbing soles