Unlike other knee pads, G-Form PRO-X Knee Pads are flexible, lightweight, breathable, and machine-washable. The fully articulated design offers maximum protection centering on and surrounding your joint, with virtually no bulk. Achieves superior protection in a very simple and lean format. You can even wear these under your clothes as an excellent safety measure for recreational or outdoor rollerskating without the bulk and bother of an over the pant knee pad. With G-Form, you never have to worry about compromising movement – you may not even realize you’re wearing them!