Performance Fuel Caffeine
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Description
Built for runners who want reliable fuel without the stomach issues, Bix Performance Fuel delivers a fast, efficient blend of carbohydrates and electrolytes to keep you moving strong through long runs, hard sessions, and race day efforts.
Developed in Germany with endurance athletes in mind, it mixes easily, tastes light, and helps maintain steady energy and hydration when the work starts to bite — so you can focus on the run, not your nutrition.
Sizing
We know the right fit matters. All of our men's and women's shoes are done in the their respective sex sizing. Unisex shoes are done in Men's US sizing, unless stated.
Use the guide below to help you choose the correct size across Unisex footwear.
Still unsure? Swing by the store or reach out to us at contact@runhavoc.com or (02) 4261 3816. Our team is here to help.
Footwear:
| US Men's | US Women's |
|---|---|
| 4.5 | 6 |
| 5 | 6.5 |
| 5.5 | 7 |
| 6 | 7.5 |
| 6.5 | 8 |
| 7 | 8.5 |
| 7.5 | 9 |
| 8 | 9.5 |
| 8.5 | 10 |
| 9 | 10.5 |
| 9.5 | 11 |
| 10 | 11.5 |
| 10.5 | 12 |
Be careful when choosing the correct size, as returns due to sizing will come at the buyer's expense.
Fit tips:
- Most shoes we carry are true to size
- Fit shoes firm in the width, with a thumb nail left in the length after your toe.
Shipping
Free Standard Shipping on orders over $300.00 AUD
Flat Rate Standard Shipping: $8.00 AUD
Flat Rate Express Shipping: $15.00 AUD





