The 187 Six Pack is a convenient and easy way to protect knees, wrists, and elbows from contact and falls. Contoured and form-fitting, all three pieces of gear cradle their respective joints securely to prevent slipping and increase mobility. Superior foam systems absorb the hard impacts, while high density plastic hard caps protect from abrasion and minor bumps. These pads are constructed from ballistic nylon to withstand the rigors of a contact sport like roller derby.