The flexible, light TPU material of the tendon boots ensures perfect freedom of movement for the horse and protects when tapped. The liner is made of 6mm perforated TPG material. TPG is lightweight and shock absorbing and is a high quality replacement for the traditional neoprene.The ventilation openings in the outer shell and the perforation of the lining limit the heating of the horse's leg to a maximum during and especially after the effort. The anatomical shape fits perfectly with the tendons to support them laterally during the exercise.Length outer shell size full: 21cm