Castelli Core Short Sleeve Tri Suit - Black - Small

The Castelli Core Short Sleeve Tri Suit is designed to provide professional-level performance and ...

Best current price£119.95from Merlin Cycles

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Merlin CyclesCastelli Women's Black Core Short Sleeve Tri Suit - Ss26 - / Large
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£119.95
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TredzCastelli Black Women's Core Short Sleeve Tri Suit 228G
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£144.95
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Product Information

Full details

The Castelli Core Short Sleeve Tri Suit is designed for triathletes seeking professional-grade aerodynamics and comfort across all race distances. This suit provides a high-value performance solution, featuring specialized aero sleeves, a quick-access front zipper, and a purpose-built triathlon seat pad; however, athletes should note that the specialized fit is optimized for cycling and running performance, which may feel distinct from standard activewear.

All features

Model Part NumberCS86250920102
BrandCastelli

Extended Product Information

FAQs

Can I use this suit for long-distance Ironman events?

Yes, the suit is suitable for all distances, though the seat pad is designed to be minimalist for comfort on the run.

How should the suit fit?

It should be tight to your body like a second skin to ensure aerodynamic efficiency; there should be no loose fabric.

Is the fabric sun-protective?

Yes, the suit features integrated UPF protection to shield skin during long hours in the sun.

Are the pockets large enough for energy gels?

Yes, the two rear pockets are designed specifically to securely hold energy gels and other race-day nutrition.

What is the temperature range for this suit?

The suit is designed to perform optimally in temperatures ranging from 15°C to 35°C.

How do I care for the KISS Tri seat pad?

Wash the suit after every use to prevent bacterial buildup and air dry away from heat sources.

Troubleshooting

Leg grippers sliding up during the run

Ensure your skin is clean and free of oils or lotions before putting the suit on, as residue can prevent the grippers from sealing correctly.

Difficulty zipping the suit during a race

Practice using the 3/4-length YKK zipper in training to understand the tension requirements; do not force the zipper if it snags, simply pull back and re-align.

Premature wear on the fabric

Check your bike saddle for sharp edges or worn areas that may be snagging the fabric of the suit during your ride.

Pros and Cons

Pros

  • Excellent aerodynamic profile due to raw-cut sleeves
  • Highly breathable for temperatures between 15°C and 35°C
  • Secure fit provided by GIRO4 leg grippers
  • Versatile storage for race-day nutrition
  • Minimalist pad prevents chafing on the run

Cons

  • Compression-heavy fit requires precise sizing
  • Minimalist padding may be too thin for ultra-long distance training
  • Long sleeves offer increased protection but require more attention during transitions

Setup, Compatibility & Care

To maintain the integrity of the performance fabric and aerodynamic features, follow these guidelines: Hand wash or machine wash in a mesh bag on a delicate cycle at 30°C. Use mild detergents and avoid fabric softeners, as these can strip away the moisture-wicking properties of the technical fabric. Always air dry the suit away from direct sunlight to preserve the elasticity of the GIRO4 grippers. Because the suit is designed for an aerodynamic race fit, ensure you select your size based on Castelli’s specific fit guide to prevent premature stretching or tearing.

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