Muay Thai shorts are instantly recognisable: a high, wide waistband, a very short leg and generous openings shaped around the kick. For brand buyers, though, the details behind that silhouette decide whether a pair performs round after round or ends up forgotten. This guide explains the cut, waistband construction and side slits that define a proper pair, and what to check before you order custom shorts for your label.
What Sets Muay Thai Shorts Apart
Unlike boxing shorts or MMA shorts, Muay Thai shorts are built around one movement above all others: the roundhouse kick. The leg must travel high and fast without fabric catching on the thigh, which is why the style is shorter, sits higher and flares more than almost any other fight short.
The Classic Short Cut
The traditional cut is boxy through the hip with a leg that ends well above mid-thigh. The front panel is kept short so the shorts never interfere with teeps or knee strikes, while the seat is cut fuller to allow deep stances, clinch work and checks without pulling across the back.
When you review samples, test them on a fighter rather than flat on a table. The classic cut proves itself in motion, and a few rounds of pad work reveal more than any measurement chart.
Rise, Leg Length and the Wide Leg Opening
Most Muay Thai shorts use a mid-to-high rise so the waistband sits securely above the hip bone. The leg opening is deliberately wide, often with a curved or retro-style hem, giving the thigh complete freedom through the full arc of a kick.
Leg length is graded across sizes rather than held constant. A small that looks right can become restrictive in larger sizes if the pattern is simply scaled up, so check the biggest and smallest sizes in your range, not just the medium sample.
Side Slits and Freedom to Kick
The side slit is the signature functional detail. A slit cut into each outer seam lets the front and back panels move independently, so the fabric opens as the leg rises instead of dragging against it.
Slit depth is a balance. Too shallow and the benefit disappears; too deep and the shorts lose structure and modesty in the clinch. The slit should also be bar-tacked at its top point, because that single spot takes repeated stress every time the leg kicks.
Waistband Construction
The waistband does more work than any other part of the short. Traditional Thai construction uses a wide band with several rows of elastic running through separate channels, which spreads pressure around the waist and keeps the shorts anchored during clinch exchanges.
When you specify a waistband for production, the details worth confirming include:
- Band width, usually noticeably wider than on standard training shorts
- The number of elastic rows inside the band, which affects grip and comfort
- A drawstring running through the band as a secondary adjustment
- Reinforced stitching where the band joins the body panels
- Printed or woven branding space on the front of the band
Fabrics: Satin, Microfibre and Mesh
Classic Thai shorts are made from satin, valued for its sheen and the way it slides over the skin. Modern production also uses polyester microfibre, which is lighter, dries faster and prints more sharply, making it the common choice for fully sublimated designs.
Some styles add mesh panels for ventilation. Whichever fabric you choose, confirm colourfastness: shorts are washed constantly, and fading shows fastest on deep reds, blacks and neon trims.
Panels, Piping and Appliqué
Side panels create the classic two-tone look and provide the best placement for logos, flags and sponsor marks. Piping along the panel edges sharpens the outline, while traditional appliqué letters and patches give a premium, handcrafted feel at a higher labour cost.
Sublimation covers the whole garment with no cracking or peeling, but only works on polyester, so choose the fabric around your artwork rather than forcing artwork onto the wrong cloth.
Sizing and Grading Across a Range
Thai sizing runs from small through several XL grades, and gyms often need junior sizes too. Many brands print both the Thai size and a waist measurement in inches or centimetres to reduce returns.
Ask how each size is graded. Waistband elastic, leg length and slit depth should all scale thoughtfully. At FORM FIGHT, patterns are graded size by size so the kick-friendly shape stays consistent from the smallest junior size to the largest adult one.
Quality Checks Before You Commit
Before approving bulk production, stretch the waistband hard and check it recovers fully. Pull at the slit bar-tacks, inspect the inside seams for loose threads, and wash a sample several times to test shrinkage and colour bleed.
Also check symmetry: panel heights, piping lines and appliqué placement should match left to right. These details separate retail-ready shorts from training-room seconds.
Custom Shorts for Your Brand or Gym
Custom Muay Thai shorts are one of the most accessible products in custom fightwear, because the pattern blocks are well established and the branding area is generous. Most brands start with fabric and colour, then add panel art, waistband branding and packaging.
FORM FIGHT manufactures custom shorts in Sialkot, Pakistan, working from your artwork files or adapting a stock design. Review our custom manufacturing capabilities to see how sampling and production are handled.
Conclusion
A great pair of Muay Thai shorts is a pattern problem solved well: a short, wide cut that frees the kick, side slits reinforced where stress lands, and a multi-row waistband that stays put through the clinch. Get those three right and the branding becomes the easy part.
If you are planning a custom run for your gym, team or label, send us your design ideas through our request a quote page and FORM FIGHT will help you turn them into a production-ready specification.
FAQs
Why are Muay Thai shorts so short?
The short leg and wide opening remove any fabric resistance during high kicks, knees and checks, which is the core movement pattern of Muay Thai.
What is the best fabric for Muay Thai shorts?
Satin gives the traditional look and feel, while polyester microfibre is lighter, faster drying and better suited to full sublimation printing.
How deep should the side slits be?
Deep enough to let the panels separate as the leg rises, usually a few centimetres, with a bar-tack at the top of the slit to stop it tearing further.
Can I add my gym logo to custom Muay Thai shorts?
Yes, logos are commonly added by sublimation, embroidery or appliqué on the front leg, side panels or waistband.
