The Castelli Free Women's Tri Singlet (Black/Pink Fluo) is a premium race-ready triathlon singlet designed for female athletes who demand exceptional comfort, lightweight performance, and aerodynamic efficiency across every stage of a triathlon. Developed using Castelli's extensive experience in professional cycling and triathlon apparel, this high-performance singlet combines advanced Italian fabrics, race-proven construction, and a women's-specific ergonomic fit to help athletes perform at their best. Whether you're racing a Sprint Triathlon, Olympic Distance, Half Ironman, or Full Ironman, the Free Women's Tri Singlet delivers the comfort, breathability, and functionality required for peak performance.

Built specifically for the demands of multisport racing, the Free Women's Tri Singlet features a streamlined race-fit design that minimizes drag while maximizing mobility. The sleeveless construction allows unrestricted shoulder movement during the swim, making every stroke feel natural and efficient. It also improves airflow during the bike and run, helping athletes stay cooler and more comfortable throughout the race.

The singlet is constructed from premium Italian performance fabrics that offer the perfect combination of lightweight comfort, durability, and technical performance. The advanced material rapidly wicks sweat away from the skin, ensuring excellent moisture management during high-intensity efforts. After the swim, the quick-drying fabric sheds water rapidly, reducing excess weight and allowing athletes to transition efficiently into the cycling leg without discomfort.

Designed with a women's-specific anatomical fit, the Free Women's Tri Singlet follows the natural contours of the female body to provide a supportive, second-skin feel. The ergonomic panel construction and four-way stretch fabrics allow unrestricted movement during swimming, cycling, and running while maintaining a streamlined silhouette that enhances aerodynamic performance. The close-fitting race cut eliminates unnecessary fabric movement, helping reduce wind resistance during fast-paced cycling.

To maximize comfort in warm weather, the singlet incorporates strategically placed mesh ventilation panels that improve airflow across key heat zones. These breathable sections continuously release excess body heat while promoting fresh air circulation, helping maintain a comfortable body temperature even during long endurance races or hot summer conditions. The result is a cooler, drier, and more efficient racing experience.

The full-length YKK® front zipper provides riders with complete control over ventilation throughout changing race conditions. Athletes can quickly increase airflow during steep climbs or intense efforts and zip the jersey closed for improved aerodynamics during descents or cooler weather. The premium zipper operates smoothly and is built for long-term reliability through countless training sessions and competitions.

Long-distance triathlon success depends on effective nutrition, and the Free Women's Tri Singlet includes rear aerodynamic storage pockets designed to securely carry energy gels, electrolyte tablets, nutrition bars, and other race-day essentials. The pockets are positioned for convenient access during cycling and running while maintaining the singlet's aerodynamic profile and minimizing drag.

Comfort over extended race durations is further enhanced through flatlock seam construction, which significantly reduces skin irritation and chafing caused by repetitive movement. The low-profile seams create a smooth interior finish, allowing athletes to focus entirely on their performance without discomfort during long hours of racing.

The premium Italian fabrics are engineered for outstanding durability, maintaining their elasticity, color, and technical performance after repeated exposure to chlorine, saltwater, sweat, UV rays, and frequent washing. This ensures the singlet continues to perform consistently throughout multiple racing seasons while retaining its race-ready appearance.

The striking Black/Pink Fluo color combination blends a sleek black base with vibrant fluorescent pink accents, creating a bold, energetic race-day look. The high-visibility design enhances rider visibility while reflecting Castelli's signature Italian style. It pairs perfectly with Castelli Free Women's Tri Shorts or other premium triathlon apparel to create a coordinated, professional racing kit.

Whether you're training for your first triathlon, chasing a personal best, or competing at the highest level, the Castelli Free Women's Tri Singlet (Black/Pink Fluo) offers everything a serious triathlete needs. Combining advanced Italian performance fabrics, superior moisture management, exceptional breathability, women's-specific ergonomic tailoring, aerodynamic efficiency, practical race-day storage, and world-class craftsmanship, this triathlon singlet is built to help you swim stronger, ride faster, and run with confidence. Trusted by athletes around the world, it represents the perfect blend of innovation, comfort, and race-winning performance.