Box Squat Pad with Head Sleeve - 2.5 InchBox Squat Pad with Head Sleeve 2. 5 The Box Squat Pad with Head Sleeve 2. 5 is a thinner and firmer pada new favorite at the S5 Compound. These thin pads make it easy to make smaller incremental jumps in box height without having to use a bunch of MacGyver like height adjustments. The Box Squat Pad with Head Sleeve 2. 5 is a 2. 5 inch thick pad built to the same dimensions as our best selling box squat box. Just lay it on top of your existing box.