Fox racing youth launch d30 knee guardsthe d3o polymer padding found in the fox racing youth launch d30 knee guards provides confidence inspiring protection. Should you take a fall, then you'll soon be up and riding your mountain bike again, with knees perfectly protected from the impact on the dirt. Meeting european en1621 1 level 1 ce certification, you can be confident the youth launch d30 knee guards keep you protected from the inevitable scrapes, bashes and falls of mountain biking. The d30 polymer is soft and flexible in normal use and yet upon impact immediately works to absorb and dissipate crash forces, far beyond that of ordinary foams. The d3o protection sits in and alongside a flexible, pre curved neoprene sleeve, making them comfortable for a day of trail riding from sun up to sundown. With their easy to slip on ergonomic fit and hook and loop closures, they're also super easy to get on and off for all your mountain biking adventures. Featuresmaterials 20% nylon, 30% polyurethane, 5% polyester, 5% elastane, 40% polymer foamen1621 1 level 1 ce certificationd3o polymer foam paddingpre curved ergonomic fit slip on fit with hook and loop adjuster perforated neoprene offers comfort breathabilitysold as a pairbuy fox racing clothing from chain reaction cycles, the world's largest online bike store.