Castelli Core Short Sleeve Tri Suit - Black - XSmall

Designed to offer everything needed for race day in an economical package, the Castelli Core Short...

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Product Information

Full details

The Castelli Core Short Sleeve Tri Suit is designed for triathletes at all experience levels who require a race-ready garment that balances professional aerodynamics with essential comfort. It excels in delivering high-end features like raw-cut sleeves and a specialized tri seat pad in an economical package, though athletes should note that the form-fitting nature requires careful sizing to ensure maximum mobility during transitions.

All features

Model Part NumberCS86250920101
BrandCastelli

Extended Product Information

FAQs

Is this suit suitable for full Ironman distances?

Yes, the KISS Tri pad is designed for long-distance comfort, though individual preference varies for ultra-long events.

Should I wear anything underneath the suit?

No, this suit is designed to be worn as a standalone garment without additional undergarments.

How should the suit fit?

It should have a snug, compressive fit like a second skin to ensure aerodynamic efficiency and prevent fabric bunching.

Can I use this in a wetsuit?

Yes, the suit is low-profile and works perfectly under a standard triathlon wetsuit.

How do I choose the right size?

Refer to the manufacturer's size chart based on your chest, waist, and hip measurements to ensure the best performance fit.

Troubleshooting

Leg grippers causing skin irritation

Ensure the skin is clean and dry before putting on the suit, and consider using an anti-chafing balm on the inner thigh areas.

Difficulty zipping up the suit

Ensure the suit is pulled up fully and symmetrically before pulling the zipper; do not force the zip if it gets caught on the internal fabric flap.

Pros and Cons

Pros

  • Professional-grade aerodynamics at an accessible price point
  • Versatile KISS Tri pad balances bike comfort and run mobility
  • Highly breathable with an easy-to-use front zipper
  • Flat-profile pockets prevent water drag
  • Secure GIRO4 grippers ensure a stay-put fit

Cons

  • Tight, athletic fit may be restrictive for some body types
  • Requires careful handling to maintain fabric integrity
  • Limited storage compared to long-distance specific suits

Setup, Compatibility & Care

To ensure the longevity of your suit, always rinse it with cold, fresh water immediately after every use, especially after swimming in chlorinated pools or saltwater. When cleaning, use a mild, gentle detergent and avoid bleach or harsh fabric softeners, which can degrade the suit's technical stretch properties. For drying, always hang the suit in a shaded, well-ventilated area away from direct sunlight. Before racing, practice wearing the suit during training sessions to ensure the sizing is correct—it should feel snug against the skin without restricting your breathing or circulation.