On cold days, keeping out the wind isnt half the battle, it can be the battle. But once you're protected from the wind, the cold doesn't seem nearly so. The Castelli Polare Bib Tights feature front panels cut from Windstopper X-Fast, which offers superior wind protection to keep both cold air and water out of the tights. The rear half of the tights use Thermoflex polyester for great warmth with minimal bulk; Thermoflex is a very breathable fabric with excellent wicking properties to keep you from overheating.The Polare Bib Tights include Castelli's excellent KISS3 pad to help keep bulk to a minimum. It features an anatomic shape to improve how well the pad conforms to your body and ultimately increase your comfort. Unlike most pads, the KISS3 pad features a continuously variable thickness, eliminating the odd sensation of thick here, thin there, that can come with a dual-density pad. The brushed microfiber cover cuts down on chafing and features a bacteriostatic treatment to reduce the chance for saddle sores. Flat-lock stitching ensures your comfort while reflective zippers allow easy on/off and serve to increase your visibility to nearby drivers.The Castelli Polare Bib Tights come in Black only and in six sizes from Small through XXX-Large.