Castelli is one of the most respected names in cycling and triathlon apparel, known for its Italian-designed gear that blends race-ready performance with thoughtful comfort and weather protection. With a heritage dating back to the late 1800s and decades of innovation in fabrics and fit, Castelli builds clothing that helps riders and triathletes stay comfortable and focused, whether in training, racing, or year-round adventure.
What makes Castelli such a strong choice for cyclists and triathletes is the brand’s commitment to engineered performance. Their garments use advanced materials designed for breathability, thermal control, wind resistance, and moisture management so athletes can push hard without overheating or freezing. Castelli’s apparel balances aerodynamic fit with comfort, making it ideal for high intensity efforts as well as long endurance rides or run-bike transitions in multisport events.
Top Castelli Picks for Winter Weather
Whether you’re braving brisk winter mornings on the road or fine-tuning your kit for a cold weather triathlon training block, Castelli’s range delivers the warmth, technical performance, and quality that serious athletes demand.
1. Castelli Entrata 2 Jacket – Essential Cold Protection
A winter staple for year-round riders, this wind-blocking jacket uses Polartec AirCore fabric to keep the front protected from chilly gusts while maintaining excellent breathability and moisture control. Perfect for colder rides when you still want full mobility and comfort.
2. Castelli Entrata Thermal Jersey – Warm Base Layer Style Jersey
This long-sleeve thermal jersey is designed to trap warmth without overheating. Its brushed fleece interior provides insulation and comfort, making it a great standalone option in cool weather or a base layer under a jacket on very cold days.
3. Castelli Unlimited Thermal BibShorts – Thermal BibShorts for Cold Roads
Thermal bibshort with added storage, for all your adventures. Nano Flex 3G fabric to keep you warm and comfortable and protect you from light rain and wet roads. Two large cargo-style pockets. Designed for gravel riding but ready for adventure or endurance rides, or if you just want extra pockets.
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