AXIAL AX2 Knee Armor w/ Hook and Loop Features: Fits pants with hook and loop style attachment for knee armor Soft temperature stabile comfort and flexibility Advanced viscoelastic polymer foam (AVP) for improved shock absorption AVP molecules stiffen at impact for versatile range of performance Light weight reduces fatigue and aid movement while riding Vented designs provide air circulation to keep you cool and comfortable Impact energy is evenly dispersed More flexible and well ventilated than AX1 Sold as a pair Meets the requirements of CE Norm EN 1621-1 2012 Level 2 Fitment: Designed for pants with hook and loop style attachment point inside of the armor pocket Fits most modern Bilt, Sedici, REAX and Street & Steel brand pants with aforementioned attachment style Also fits many other brands, measure armor pockets and compare to dimensions below Dimensions: Dimensions: 8.5" x 5.25" x .6" AXIAL armor is made with four things in mind: The rider, protection to keep you safer, comfort to keep you riding longer and performance to keep you at your peak riding skills. AXIAL armor lives under the surface and works behind the scenes so nothing can get in your way of a perfect ride. Wants and Kneeds When you want to kit up with some low profile knee armor, but need something protective with a hook and loop attachment for your favorite riding pants, the options are few - that's where this specific version of AXIAL AX2 comes in. Designed specifically for pants with internal hook and loop fasteners, these knee pads fit comfortably and stay put. AX2's AVP foam technology helps the armor conform to your knee both on and off the bike, providing CE Level 2 protection without looking like you're rocking 1990's rollerblading pads under your pants. That's Cool Taking what they learned from the AX1 lineup, the engineers at AXIAL added increased ventilation and chamfered channels around those vents to promote airflow and regulate your body temperature in the warmer months. You're a rider, so you're already pretty cool by our standards - couple that with those additional channels to keep the outer layer of your pants out of the vent holes and you'll be cooler than cool - that's cool.