Wear them by themselves, or back up your hard cap knee pads with the Neoprene body lined with terry cloth for added comfort and sweat absorption. The Velcro® tabs allow for attachment to knee pads to prevent slippage. 

To ensure a perfect knee pad fit, measure circumference of extended knee and match to the sizes listed below:

S 12.5 – 14.5 in (32 – 36 cm)
M 14.5 – 16 in (36 – 40 cm)
L 16 – 17 in (40 – 44 cm)
XL 17 – 19.5 in (44 – 50 cm)