The Castelli Estremo Shoe Covers are built for extremely cold conditions – keeping your toasty well below freezing, the Estremo is fully windproof and keeps water away whilst retaining breathability.
The Estremo is Castelli’s warmest shoe cover produced to date, owing to its innovative composition that has been explicitly selected to keep you insulated on cold-weather adventures.
All-new and updated Gore-Tex Infinium fabric offers unrivalled, high-grade water protection, keeping you dry when you encounter those inevitable rainy showers and crucially gives you full windproof protection. Despite its protective properties, Gore-Tex Infinium is also breathable meaning that your feet remain at an optimal temperature, even when the temperature fluctuates.
The fleece-backing of the Gore-Tex Infinium is met with an additional fleece-layer of Polartec material which has a thick loft to trap air close to the skin whilst contributing to moisture management.
A specialised construction around the ball of the foot means that although the Estremo is thick, rub on your crank arm when worn is minimised. The YKK AquaGuard zipper is primed to protect you from additional spray whilst the extra overall height gives even more foul-weather protection. These careful considerations reflect Castelli’s ongoing commitment to creating fully ride-ready performance garments and make the Estremo shoe covers a must-have for cold climes expeditions or midwinter training.
- Extreme condition cold-weather shoe cover
- Gore-Tex Infinium fabric breathable, windproof and water-resistant
- Polartec PowerStretch Pro fleece lining for extra warmth
- Reflective details for low-light visibility
- YKK AquaGuard Zipper
- Highly durable underfoot material
- Suited for -10˚C to -5˚C
Castelli Cycling is the most innovative, stylish and prestigious cycling clothier in the world. Decades of pro cycling development and a passion for perfection in materials, cut and performance has seen the brand reinvent cycle wear time after time. From the first Lycra shorts to sublimated printing, the game-changing Gabba and aerodynamic apparel, Castelli continues to set a path that others can only follow while maintaining generations of Italian heritage. Read more about Castelli.
Founded by real cycling enthusiasts in 2004, our passion for elite performance runs through everything we do at Saddleback. Our team of dedicated roadies, mountain bikers and triathletes practice what we preach to bring you the finest cycling products and a superior service to match. We're the official UK home of Castelli, Chris King, ENVE, HJC, Moots Cycles, PUSH, Sidi, Silca, Sportful, Stages, Troy Lee Designs and Wolf Tooth.