Nobody likes wearing bulky knee pads, but sometimes you just have to. Until now, that is. POC Joint VPD Knee Protectors provide the protection of a bulky hardshell knee pad with the slim design and breathability of a soft pad.
The secret is Visco-Elastic Polymer Dough, or VPD. This modified polyurethane foam is soft and pliable. In a hard impact, however, it instantly hardens into a protective shell. These VPD pads are placed in the front and sides of the knee protector and held in place with stretchy, breathable neoprene. High-abrasion areas are then covered with an abrasion-resistant aramid fabric.