a low-density material that is really light

the foam squeezes together

The protection is built into the sock

The protection is made of EVA-foam

They work exactly like a compression stocking and increase the blood supply in the legs:

adamas diamond 190 red shin guards a low-density material that isAdamas shin guards are ultra light, with a total weight of 50 grams for full protection. The protection is made of EVA foam, a low density material that is really light. When there is an impact, the foam squeezes together, and the foam gets stiff and hard but just hard enough to handle the impact. That's what we call a smart protection. The protection is built into the sock, which is made of polyester and nylon. This combination has amazing attributes