The Brit Rider is designed and created specifically for horse lovers and equine-care professionals worldwide. Breathable Airmesh lining. Stretch-fit topline binding snugs calf to keep warmth in and cold out. Stretch Nubuck overlay. Additional achilles reinforcement for added protection. Kick-off lug for easy removal. Wide cut heel base for stability. Seamless, quick-clean rubber overlay. Added toe protection with a wrap-up toe bumper. Durable, high abrasion solid rubber outsole. CR flex-foam bootie (5mm) with four-way stretch nylon, snag-resistant cover is 100% waterproof, lightweight, flexible, buoyant, and will form to virtually any calf girth. Comfort range of 85° F to sub-freezing conditions.