Rival boxing boots run slightly small versus standard UK street-shoe sizing, and the sizing differs by model. Always cross-check against your foot length in millimetres rather than your usual UK size — a 270mm foot ranges from UK 9 in some models to UK 8 in others. Insole length is the source of truth.
Fit tip: Rival recommends snug, not tight. A boxing boot wants to grip the foot so you can pivot without the boot shifting on the ball or heel. If you're between two insole lengths, size up by 5mm to leave room for sock thickness.
RSX-Genesis 2.0 / Genesis 3
| Insole length | US size | EU size | UK size |
|---|---|---|---|
| 238 mm | 5 | 37.5 | 4 |
| 246 mm | 6 | 38.5 | 5 |
| 255 mm | 7 | 39.5 | 6 |
| 263 mm | 8 | 41 | 7 |
| 271 mm | 9 | 42.5 | 8 |
| 280 mm | 10 | 44 | 9 |
| 288 mm | 11 | 45 | 10 |
| 297 mm | 12 | 46 | 11 |
| 305 mm | 13 | 47.5 | 12 |
RSX-Guerrero (Classic, Deluxe, 03 High-Top, V Bag)
| Insole length | US size | EU size | UK size |
|---|---|---|---|
| 230 mm | 5 | 37.5 | 4 |
| 240 mm | 6 | 38.5 | 5 |
| 250 mm | 7 | 39.5 | 6 |
| 260 mm | 8 | 41 | 7 |
| 270 mm | 9 | 42.5 | 8 |
| 280 mm | 10 | 44 | 9 |
| 290 mm | 11 | 45 | 10 |
| 300 mm | 12 | 46 | 11 |
| 310 mm | 13 | 47.5 | 12 |
| 320 mm | 14 | 48.5 | 13 |
How to measure your foot
- Stand on a sheet of A4 paper, heel pressed flat against a wall.
- Mark the very tip of your longest toe with a pen.
- Measure from the wall to the mark in millimetres.
- Take the measurement at the end of the day — feet swell with training.
- Measure both feet and use the larger number.
Browse all Rival Boxing gear or shop the dedicated Rival Boxing Boots collection.
Rival RSX Guerrero 03 High Top Boxing Boots White
The legend is reborn! Back by overwhelming demand, the White Rival RSX Guerrero 03 High Top Boxing Boots return, now infused with upgrades for peak performance in the gym and the ring.
Main Features:
- Classic High-Top Design: Timeless style with superior ankle support for stability.
- High-Resistance Rubber Outsole: Engineered for unmatched grip, providing traction for decisive moves.
- Reinforced Carbon Fibre Heel Cap: Defy limitations with durability and stability from textured carbon fiber PU.
- Breathable Mesh Construction: Stay cool with breathable mesh on both sides, ensuring comfort and dry feet during intense workouts.
- Lightweight EVA Insole: Walk on clouds with a supportive, lightweight EVA insole for added comfort.
Gear up and step into the future with the Rival RSX-Guerrero 03 High Top Boxing Boots. It's not just a comeback; it's a revolution in combat sports footwear!
Manufactured by: Rival Boxing
Product Type: Footwear
Gender: Unisex
Material: Synthetic Leather
Origin: China
£4.99 FREE - Spend over £75 (*Mainland UK only) - Delivered within 3 working days - Estimated delivery date provided at checkout - Tracking number available once shipped
£9.99 - Delivered next working day - Estimated delivery date provided at checkout - Tracking number available once shipped - Subject to order cut off times. *Order before 12pm.
£23.99 - Delivered within 4 working days - Estimated delivery date provided at checkout - Tracking number available once shipped - Destinations include Northern Ireland, Scottish Highlands and Channel Islands.
from £20 - For orders over 100cm in length or 30kg in weight. - Oversized items are not eligible for free delivery - Total cost calculated at checkout. Please check dimensions and weight are suitable before completing your order to save any unexpected returns costs.
Easy Returns available on all UK mainland orders via our returns centre - Please complete the returns form in full and send your order back to us via your selected method. - Returns will be processed within 7-14 days of receipt - If your order is oversized please contact us to arrange an alternative returns method. For more information view our returns policy.
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