Castelli Estremo Thermal Winter Cycling Cap

From £65.00
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Sigma Sports
£65.00
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Price last checked: 03/10/2026

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Castelli Estremo Thermal Winter Cycling Cap

Castelli Estremo Thermal Winter Cycling Cap Combining exclusive Polartec AirCore on the front and Castelli's Warmer fabric on the back, the Castelli Estremo Thermal Winter Cycling Cap strikes the ideal balance of weather protection, warmth and breathability. Facing into the weather, Polartec AirCore, the PFAS-Free, el ...
Castelli Estremo Thermal Winter Cycling Cap Combining exclusive Polartec AirCore on the front and Castelli's Warmer fabric on the back, the Castelli Estremo Thermal Winter Cycling Cap strikes the ideal balance of weather protection, warmth and breathability. Facing into the weather, Polartec AirCore, the PFAS-Free, electrospun, semi-air-permeable fabric, ensures cold winds are kept out and light rain is repelled. To the back, Castelli's Warmer fabric provides warmth and an easy escape route for sweat vapour, maintaining comfort when the pace rises or the terrain pitches upwards. With its peaked design and carefully shaped ear coverage, it's the ultimate headwear for cyclists riding through the harshest months. 
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About: Castelli

Castelli is a leading brand in the cycling industry, known for its high-performance cycling apparel and accessories. The brand has a rich history, dating back to 1876, and has been a favorite of professional cyclists for many years. Castelli offers a range of cycling clothing, including jerseys, shorts, and jackets, that are designed to maximize comfort and performance. The brand is known for its innovative fabrics and construction techniques, such as its use of windproof and water-resistant materials. Castelli also offers a range of cycling accessories, including gloves, hats, and socks, that are designed to complement its clothing line. With a focus on quality, innovation, and performance, Castelli is a popular choice for serious cyclists looking for top-of-the-line gear.

About: Sigma Sports

Sigma Sports is a leading cycling and triathlon retailer based in the United Kingdom. Sigma Sports provides a comprehensive range of products catering to cyclists, triathletes, and outdoor enthusiasts. The store offers a diverse selection of bicycles, cycling accessories, apparel, and gear from well-known brands. Sigma Sports is known for its commitment to quality, customer service, and expertise in the cycling industry. The retailer has both a physical store and a robust online presence, making it convenient for customers to explore and purchase products. Sigma Sports is often associated with a wide range of cycling disciplines, including road cycling, mountain biking, and triathlon.