ASSOS knee Warmers fall just below the knee & offer ideal insulation for your knees & thighs. We made them using our sophisticated ASSOS cut design solution, which let us create a completely seamless area in the sensitive knee zone. This extraordinary feature allows our knee Warmers to perfectly follow your movements at all times, providing you with outstanding comfort. On colder winter days, you can wear knee Warmers under your long LL.607 winter trousers. Check it out. It works great!• Like our sleeve extenders, ASSOS knee Warmer_S7 is also made out of soft, warm RX fabric.• Composition: 55%PA, 17%EA, 26%PES, 2%PP