Castelli Size Chart Winters are becoming less cold, and Castelli wanted to create the right tight for cool conditions. The LW Bibtight brings the thermal protection down over the front of the knee and adds a lower panel in water-repellent Nano Light fabric. The comfort on this tight is amazing, and it provides just enough warmth with full freedom of movement for your long adventure rides in the fall, or your early-season mild-temperature long base rides. Features: - Lighter-weight bibtight for light winter conditions - Thermoflex fabric for exceptional warmth, stretch and breathability - Lower panel in Nano Light fabric for splash protection - Progetto X2 Air Seamless seat pad for long-distance comfort - Mesh bib straps so that you can regulate insulation with your base layers, not the bib - Temperature range: 10deg-18degC / 50deg-65degF - Weight: 262g