LeMieux Olive Mens Bramshaw Welly Olive vicki enable and has independent side movement and has independent side movement Low magnesium may be caused by a grazing deficiency or simply a horse or pony's individual metabolism The rugged enhanced rubber outsole features high traction lugs and tread for outstanding grip built for endurance and extended heavy wear • Highly durable and enhanced premium rubber compound • Rugged and thick rubber outsole with scuff resistant textured mudguard • High traction lugs and grippy tread pattern• Concealed topline calf gusset with buckle strap for zero water and dirt entry • Premium cushioned neoprene lining for added internal comfort • Ergonomic and contoured comfort footbed with anti microbial odour neutralising insock • Rear extended heel kick to aid boot removal