eCarbon shock tendon boots with PATENTED eFluidgel system Made with materials of high quality, reliability and durability. Anatomically shaped to wrap around the tendon, protecting from injuries while ensuring comfort. Outer shell reinforced with TPU; soft neoprene lining, washable Lycra edges to prevent sores; two fastening points and elastic strap ensure easy adjustment. Exclusive patented eFluidgel technologyThe special bubble in the shell greatly reduces the impact the horse's leg could suffer due to air- and gel compression, and to their capacity to absorb shock. Free Torsion SystemSpecial system that ensures the horse's leg is not blocked when jumping. eShock front are machine washable.You can wash them easily with a gentle soap at 30C.Do not put them into the dryer. Measure the circumference of your horse's leg to find the most correct size.Please note that each horse is different and our chart is intended just to give you a guide. All measurements are approximate and remember that boot fit is adjustable with pins or velcro straps. Small (pony) = 17/19 cm Medium (cob) = 20/24 cm Large (full) = 24/+ cm More generally for a horse with an height: - less then 158 cm = Small (small and ponies) - between 158 cm and 172 cm = Medium (cob) - more then 173 cm = Large (full)