The Castelli Core Women's Tri Singlet (Coral/Light Blue) is a premium women's triathlon top engineered to provide outstanding comfort, breathability, and performance across every discipline of triathlon. Designed with Castelli's renowned Italian expertise and advanced technical fabrics, this lightweight sleeveless singlet is built for female athletes who want reliable race-day performance without compromising comfort. Whether you're training for your first triathlon or competing in Sprint, Olympic, Half Ironman, or Full Ironman events, the Core Women's Tri Singlet delivers the perfect balance of functionality, durability, and race-ready performance.
Developed specifically for the unique demands of multisport racing, the Core Women's Tri Singlet features a streamlined performance fit that supports unrestricted movement during swimming, cycling, and running. Its sleeveless construction allows complete freedom of shoulder movement, making every swim stroke more natural while enhancing airflow during the bike and run. The lightweight design minimizes unnecessary bulk, helping athletes maintain speed and efficiency from the starting line to the finish.
Constructed using premium Italian performance fabrics, the singlet combines lightweight comfort with excellent durability and advanced moisture management. The technical fabric rapidly wicks perspiration away from the skin, allowing sweat to evaporate quickly and keeping the body cool and dry throughout intense training sessions and race-day efforts. During the swim, the material absorbs very little water, ensuring a lighter feel and enabling quicker, more efficient transitions onto the bike.
The women's-specific ergonomic fit has been carefully designed to complement the natural shape of the female body. Anatomically positioned panels work together with four-way stretch fabrics to create a close-fitting yet comfortable silhouette that moves naturally with every stroke, pedal rotation, and running stride. This second-skin fit reduces unnecessary fabric movement while improving overall comfort and aerodynamic efficiency throughout the race.
Strategically placed mesh ventilation panels maximize airflow across key heat zones, helping regulate body temperature even during long endurance events and warm-weather racing. These breathable sections continuously release excess body heat while promoting fresh air circulation, ensuring athletes remain cooler and more comfortable during high-intensity efforts.
The full-length YKK® front zipper allows riders to adjust ventilation quickly according to changing weather conditions and race intensity. During steep climbs or hot conditions, the zipper can be partially opened to increase airflow and cooling. When greater aerodynamic efficiency is required, it can be fully closed to maintain a sleek, race-ready profile. The premium zipper offers smooth operation and long-lasting reliability through countless training sessions and competitions.
To support endurance racing, the Core Women's Tri Singlet includes rear nutrition storage pockets designed to securely carry energy gels, electrolyte tablets, nutrition bars, and other essential race supplies. The pockets are positioned for convenient access during both cycling and running while maintaining a streamlined fit that minimizes aerodynamic drag and prevents unnecessary movement.
Long-distance comfort is enhanced through flatlock seam construction, which significantly reduces friction against the skin. Carefully engineered seam placement helps prevent irritation and chafing during repetitive movement, allowing athletes to remain focused on their performance throughout extended races and training sessions.
The premium Italian fabrics are engineered for exceptional durability, maintaining their elasticity, shape, vibrant colors, and technical performance after repeated exposure to chlorine, saltwater, perspiration, UV rays, and frequent washing. This ensures the singlet continues delivering reliable performance season after season, making it a valuable addition to any triathlete's wardrobe.
The vibrant Coral/Light Blue color combination creates a fresh, energetic race-day appearance that reflects Castelli's signature Italian styling. The bright coral tones combined with refreshing light blue accents enhance visibility on the race course while delivering a modern, athletic look. It pairs perfectly with Castelli Core Women's Tri Shorts or other premium triathlon apparel to create a coordinated, professional race kit.
Whether you're completing your first triathlon, improving your personal best, or preparing for a long-distance endurance event, the Castelli Core Women's Tri Singlet (Coral/Light Blue) provides everything a dedicated triathlete needs. Combining lightweight Italian performance fabrics, advanced moisture-wicking technology, exceptional breathability, women's-specific ergonomic tailoring, practical nutrition storage, and premium craftsmanship, this triathlon singlet is designed to help you swim efficiently, ride comfortably, and run confidently. Trusted by athletes around the world, it offers the perfect combination of comfort, durability, and race-ready performance for every triathlon challenge.
