Whether you're just beginning on your triathlon journey or you're more experienced but budget-conscious, the Castelli Core Short Sleeve Trisuit delivers premium performance without the big-budget premium price tag. Fabrics have been chosen for their high functionality, maintaining comfort from the swim to the bike to the run. Elbow-length sleeves deliver smooth aerodynamics, with raw-cut edges lying smoothly and comfortably against the skin. The same attention to smooth airflow extends to the GIRO4 leg grippers, keeping everything in place while achieving aero gains. A 3/4 length YKK® front zip gives you complete control over temperature regulation and airflow.
Kiss Tri Seat pad
Castelli’s Kiss Tri seat pad has been designed specifically for the demands of triathlon. Any unnecessary bulk has been removed, optimising comfort and mobility during the swim and run legs. However, targeted padding ensures excellent comfort on the saddle and extra fast-drying foam prevents chafing and discomfort when transitioning from swim to bike.
Features
Top short-sleeve suit for your first triathlon experience or budget-minded athletes
Elbow-length sleeves with raw-cut edges for maximum comfort and aerodynamics
3/4-length YKK® front zip
2 rear pockets lie flat in the swim but allow generous room for nutrition
GIRO4 flat leg grippers on longer legs for maximum aerodynamics
KISS Tri seat pad that provides comfort on the bike and that you almost don't feel during the run
Recommended temperature range: 15 to 35°C
Size Guide
Castelli Core Short Sleeve Trisuit Sizing
Delivery & Returns
Reviews
Unable to display Reviews due to Privacy Settings.
We use cookies to improve your experience on our website and to show you personalised content. You can read our Cookie and Privacy policy or manage them individually.
Sign In
It looks like you've already got an account!
Sign in now for faster checkout. We'll also make sure this order counts towards your Loyalty Scheme discount.
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
