* TOP selling Derby pad XS-3X Real 187 Pro Derby Knee pads, careful of fake imitations Update your 187 Pro knees, now in new DERBY DESIGN with all the advanced new features! PLEASE NOTE: the fit is a little smaller than the old 187 Pro. Still larger than many pads. If you wore a SMALL Pro you might wear a MEDIUM Pro Derby. Here are our Measurements, and what size we wear in the NEW Derby Design:Above the knee: 15in, Below the knee: 13.5in - XSmallAbove the knee: 15.25in, Below the knee: 13.75in - SmallDish - Above the knee: 17.50in, Below the knee: 14.50in - MediumDish w/Knee Gaskets - Above the knee: 18in, Below the knee: 15.50in - MediumBacon - Above the knee: 18.5in, Below the knee: 15.75in - MediumAbove the knee: 18.25, Below the knee: 16.75 - MediumAbove the knee: 18.50, Below the knee: 17.25 - LargeDesigned for Roller Derby and tested by US. We love them!**Easy to wash; pad turns inside out so you can remove foam and wash them! Also comes with a wash kit of extra tabs to cover your velcro (keeps it grabby longer and prevents the velcro from tearing up the other things in your laundry basket!)**Lower profile, less bulky - still the same high level of protection**Lock-in (tm) Core and Cap system - removable foam for easy washing and interlocking strap system that keeps the foam in and the cap from slipping. "Bottom to top, flap then straps!"**Dual Density foam specially formulated to provide cushion and protection for multiple hard impacts. More contoured foam CUPS your knee for lower profile but still high cushion and safety!**Rapid FLEX (tm) Hinge allows pad to respond to full range of motion; straighten and bend knees with very little resistance.**Fusion Groove (tm) Channel maintains foam connection to skater's legs and helps eliminate pad slip. - lightweight fast drying interior lining- seemless interior finish for comfort on bare legs- Ballistic nylon with industrial-weight stitching ensures durability- Three-panel construction for reliable performance- Open-back butterfly strap design for excellent fit and quick on/off