Protective vpd 20 padding has been used in these undershorts to give you added confidence by protecting your hips and tailbone but without inhibiting your movement on the bikethe shorts utilise vpd 20 visco elastic polymer dough pads to achieve such high levels of comfort manoeuvrability and protection vpd 20 offers excellent levels of impact absorption and also adapts to suit the individual rider for an individual fit it goes from soft to hard on impact to dissipate the impact forces