The Castelli Polare 4 Bib Tights are the ultimate solution for riders who refuse to stop when temperatures plunge, offering the warmest protection in the Castelli range. Designed for extreme winter conditions, these tights feature a full Polartec® AirCore™ front for complete windproof coverage, paired with Thermoflex fleece on the seat and back of the legs for added warmth, stretch, and mobility. The KISS Air2 seat pad delivers excellent cushioning without unnecessary bulk, keeping you comfortable through long cold-weather miles, while mesh bib straps provide secure support and effectively wick away moisture. High-visibility reflective stripes above the knee in front and on the calf at the back enhance safety in low-light conditions, and durable ankle zippers make them easy to slip on and off over shoes. With a weight of 311 g, a regular fit, and an effective temperature range from -5°C to 5°C (23°F to 41°F), the Polare 4 Bib Tights are built to keep you riding strong in the harshest winter environments.