Race Day Accessories That Give You the Edge

You’ve got your tri suit picked out (and if you haven’t yet, check out our WYN Tri Suit Guide to find the perfect match for race day). Now it’s time to focus on the race-day extras that make all the difference. From aerodynamics to comfort to fast transitions, these WYN-approved accessories are designed to help you show up dialed in, confident, and ready to perform at your best.

🦵 CdA Aero Calf Sleeves

Pair with: CdA Aero Tri Suit for maximum aero advantage

Our fastest calf sleeves ever. The CdA Aero Calf Sleeves are engineered for serious speed, delivering a 3.4% aerodynamic gain over our 2023 WYN Aero Calf Sleeves. When worn with the CdA Aero Tri Suit, the combined aero benefit jumps to 14% compared to the 2023 Luceo+ Tri Suit alone.

Crafted from advanced Hi Speed aerodynamic fabric, these sleeves provide a second-skin fit with light compression for improved circulation and performance from swim start to run finish.

Key Features:

High Speed aero fabric to reduce drag
Light compression for endurance and blood flow
Laser-cut cuff + silicone grippers to stay locked in
UPF 45+ for sun protection
OEKO-TEX® certified

🔥 Pro Tip: Match them to your CdA Aero Tri Suit for a race-day look as fast as it feels.

🚴 Aero Calf Sleeves

Pair with: Luceo+ Aero and Hi Velocity X Tri Suits

Worn by our pro athletes before even launching to the public, these race-proven sleeves are engineered for speed and trusted on the world stage. Crafted from the same Hi Speed aerodynamic fabric, they offer a second-skin fit and light compression—ideal for triathlon or cycling races where every second counts.

Key Features:

Race-tested by WYN pros around the world
Aero-optimized to reduce drag
Enhances blood flow + minimizes resistance
Secure fit with laser-cut edges + silicone grippers
Designed for comfort and performance from start to finish

🔥 Pro Tip: Put on your calf sleeves before your tri suit to avoid damaging the laser-cut edges—and align the seams for maximum aerodynamic benefit.

🧦 Performance Socks: Flagship, Heritage & LTD

Your feet carry you across every mile—give them the support they deserve. Our WYN performance sock collection delivers elite-level comfort and functionality.

Why athletes love them:

Flat toe seams = no irritation mid-race
Light compression and arch support
Diamond-weave construction for breathability
Moisture-wicking and quick-dry tech
OEKO-TEX® certified yarns for quality + comfort

👟 Whether you choose the bold LTD, classic Flagship, or fan-favorite Heritage, your feet will thank you.

Pro Tip: Roll or bunch your socks halfway before your race to make them easier to slip on in transition—no fumbling with damp feet or tight cuffs.

🎽 Race Number Belts: Essential & Storage Pro

Stop pinning holes in your kit. Our race belts are lightweight, adjustable, and made for effortless transitions.

Choose your style:

1. Race Number Belt – Minimal and secure, now with elastic gel storage loops
2. Storage Pro Belt – Includes an integrated zip pouch for keys, gels, or other small essentials

✅ One-size-fits-all
✅ No bounce, no fuss
✅ Ideal for triathlon, cycling, or running events

Pro Tip: Anchor your belt low on your hips and tighten it snugly to prevent bouncing or spinning. Place your bib to the side for reduced wind resistance on the run.

⏱️ Timing Chip Strap

A race-day essential. Our ankle timing chip strap is lightweight, secure, and comfortable. It stays in place without chafing or slipping—so you can stay focused on the course, not your gear.

Pro Tip: Wear your timing chip under your wetsuit (but over your skin) so it stays secure in the water and doesn’t get caught on your suit in T1.

👟 WYN Speed Laces

Crush your transitions with WYN speed laces—designed to save valuable seconds when it counts most.

Why they work:

Elastic fit adapts to any running shoe
“Press + pull” toggle system for quick tension adjustment
No tying, no wasted time

Perfect for triathlon transitions, but also ideal for runners who just want a faster way out the door.

Pro Tip: Dial in your fit before race day. A snug (not tight) setup gives you a quick transition and a blister-free finish.

🎯 Every Detail Counts

When you’ve done the training, the gains are in the details. From reducing drag to cutting down transition time, these WYN race day accessories are designed to help you unlock your best performance yet.

Whether you're racing your first sprint triathlon or chasing a podium spot in long-course, showing up prepared—and dialed—is key.

WYN Pro Insight: Practice with your accessories just like you do with your gear. Race day is not the time for new tricks—get comfortable, get dialed, and gain free speed with smarter setup.

Ready to gear up?
👉 Shop all race day accessories now