Made from a fabric developed exclusively by Rapha, these high-performance knee warmers combine the natural performance properties of merino wool with a degree of Lycra for stretch and durability. They provide insulation, are highly breathable and also transfer moisture effectively. The fabric is quick-drying so the knee warmers can be used in a variety of conditions. Reviews: They keep their shape throughout even a long ride and that’s a good thing. They also stay warm if they get a bit sweaty and are much more odour-resistant than most synthetic fabrics. There’s just the one seam and it’s flatlock stitched so you can’t even feel it and a silicone rubber gripper stops the top from slipping. Mat Brett on road.cc **** Please note that due to the very fine weave used in the construction of this garment we are unable to extend our free repair service to cover this product.