The Triple 8 Deep Cover Fit Kit is a kit of replacement liners for the Triple 8 Deep Cover Helmet. The kit comes with 17 pieces, some are there to replace old or worn lining while other pieces are meant to customize the fit by adding more padding wherever your head needs them. The kit includes a measuring tape that circles around your head perfectly with a looping hole so that you can measure your noggin easily. It also includes two back fit pads, three front fit pads, four top fit pads and eight fit shims. The Triple 8 Deep Cover Helmet of course is not included but sold separately.