WHAT IT IS / PRODUCT FEATURESLightweight and breathable shorts for comfortable indoor workouts. Sleeve made of 195 g/m2 Lycra® fabric to keep everything securely in place without see-through.Mesh side panels for extra ventilation.Flat leg ends with no hemming, designed to prevent sagging.Minimalist braces with open knit for maximum breathability.Lined with Progetto X2 Ai upper for maximum skin care.Colour: 010 blackSize: XS - 3XLWeight: 132g. (M)Temperature range: 20 - 40°C Material Composition:Hlavnth material 71%polyamide 29%elastaneSide panels 80%polyamide 20%elastaneBottom of legs 68%polyamide 32%elastaneBack 77%polyamide 23%elastaneStraps 80%polyester 20%elastaneLining 87%polyester 13%elastane If your main training tool during the winter is indoors, then these special indoor shorts will keep you cool. The entire construction is aimed at being as breathable, lightweight and cooling well as possible while providing the support you need. The main body fabric is lighter than what we use for our summer pants, and the mesh side panels help with extra ventilation. In place of a full liner, we use just the top of the Progetto X2 Air Seamless liner because it's soft and squishy enough for most indoor rides, but it's also much more breathable than the full Progetto X2 Air liner. Oh, and the braces are our lightest and most breathable we've ever made.