How to Pick the Right Size Shin Guards for Muay Thai (2025 Guide)
The right shin guards protect your shins and ankles without slowing you down. Get the size right and they’ll stay put through kicks, checks, and clinch; get it wrong and they’ll twist, pinch, or leave gaps that hurt later.
Below is a simple sizing method using Twins as an example (since they provide a clear chart), plus brand notes for Fairtex, Windy, Raja, Top King, Arwut, and Mongkol.
Step-by-Step: Measure Your Leg
- Shin length: Measure from the top of your ankle bone to just below the knee cap. That’s the coverage your guard should provide without digging into the knee.
- Calf circumference: Measure the widest part of your calf. This helps make sure straps fasten comfortably without gaps.
- Instep length: Measure from the front of the ankle crease to the end of your big toe joint. This ensures the foot pad covers your instep properly.
- Try-on test: In stance, flex the ankle and throw a few light checks. The guard should not twist or slide; straps should sit flat.
Sizing Example: Twins Shin Guards
Twins offers a straightforward size guide (S–XL). Match your height and shin length first, then consider your weight and calf size if you’re between sizes.
Quick Reference (Most Muay Thai Brands)
| Size | Typical Height | Weight Range | Shin Length (approx.) | Notes |
|---|---|---|---|---|
| S | 150–165 cm | 45–60 kg | ~33–35 cm | Teens, smaller frames |
| M | 165–175 cm | 60–75 kg | ~36–38 cm | Most adult beginners |
| L | 175–185 cm | 75–90 kg | ~39–41 cm | Common for intermediates |
| XL | 185 cm+ | 90 kg+ | ~42–44 cm | Bigger frames / longer shins |
Note: Each brand’s cut differs slightly. When between sizes, choose the size that best matches your shin length first, then adjust with straps.
Fit & Build: What Matters Most
- Coverage: The top should sit just below the knee cap; the bottom should cover the ankle without digging into the foot.
- Straps & stability: Two rear straps (sometimes three on bigger sizes) should lie flat and keep the guard from twisting during checks.
- Instep protection: The foot pad should fully cover the instep and sit centered over your laces/toes.
- Padding feel: Firmer padding = more feedback (pads/bag). Thicker/plusher = more protection (hard sparring).
- Material: Real leather generally lasts longer; high-grade synthetics can be lighter and dry faster.
- Gym test: Do 10 light checks and a few teeps. If the guard twists or drops, size up or tighten straps.
Brand Notes (Quick & Honest)
Twins
Classic Thai fit with sturdy leather and plush padding. Great coverage and stability for everyday sparring.
Fairtex
Slightly sleeker profile; secure straps and firm feel. Good for technical work and fast checks.
Windy
Traditional build with comfortable padding. Solid, dependable option for regular training.
Raja
Lighter feel and agile shape. Nice for speed, pad work, and mobile sparring.
Top King
Generous padding with wraparound coverage. Popular for heavier sparring days.
Arwut / Mongkol
Great value choices with comfortable fits. Ideal for beginners and second pairs.
Shop Muay Thai Shin Guards
Final Tips
- Between sizes? Go by shin length first; then adjust straps for calf size.
- For heavy sparring: Choose thicker padding and a taller profile (often L/XL).
- For speed/tech work: Slightly lighter, slimmer guards (M/L depending on height).
- Bigger athletes: Consider XL for full coverage, especially if your shins are long.