■ Manufacturing since 2020 · Sialkot, Pakistan
Products · made to order · Sialkot, Pakistan
Sublimated rash guards for BJJ, MMA, no-gi and training, made to your design in polyester/spandex or nylon/spandex with flatlock seams and grip hems.
Short answer: Rumbling Fit manufactures custom rash guards for brands, gyms and teams: long or short sleeve, men's, women's and kids' cuts, fully sublimated in your artwork. Standard fabric is polyester/spandex around 180–220 GSM with four-needle flatlock seams and a silicone grip hem. Minimum order is 10 pieces per design, with samples in 7 to 9 days.
A rash guard has three jobs: protect the skin from mat burn and friction, stay in place through scrambles and inversions, and survive hundreds of washes. Those jobs come down to four details.
We build all four into our standard rash guard. Read our rash guard fabric guide for more on fabric choice.
Ranked and unranked designs for no-gi training and competition, with rank-color coverage for federations that require it.
Bold all-over designs for MMA training, often sold as a set with matching fight shorts.
Full arm coverage for grappling and protection from mat burn.
Cooler option for striking, conditioning and warm climates.
Dedicated women's block with a shaped body, not a resized men's pattern.
All-over, edge-to-edge artwork, unlimited colors.
| Option | Standard | Upgrades |
|---|---|---|
| Fabric | Polyester/spandex ~85/15–88/12, ~180–220 GSM | Nylon/spandex ~80/20 for a softer, cooler hand |
| Seams | 4-needle 6-thread flatlock | Bonded or taped details |
| Neck | Bound or folded crew neck | Mock neck |
| Hem | Silicone gripper band | Elastic band, longer drop-tail back |
| Sleeves | Raglan, long or short | Thumb loops, gripper cuffs |
| Label | Printed heat-transfer (tagless) | Woven label at hem |
Sublimation is the standard for rash guards because it covers every panel, handles unlimited colors and doesn't add any surface layer to rub. Small logos can be added by heat transfer. We don't recommend embroidery on high-stretch rash guard panels because it restricts stretch and can scratch. See sublimation printing.
Rash guards should fit tight without restricting movement. Our standard adult range runs XS to 3XL, with women's and kids' ranges. We can grade to your own size chart. The guide how a rash guard should fit explains what to check.
Send your design, logo or reference. We reply within one working day.
Polyester/spandex is the most popular for sublimated rash guards: durable, colorfast and good value. Nylon/spandex feels softer and cooler but costs more and needs a different print approach.
Yes. One design is produced in the standard belt-rank colors, often with each rank as its own design for MOQ purposes.
Yes, on a dedicated women's block with a shaped body and adjusted sleeve.
No. Sublimated prints are dyed into the fabric, so there's nothing on the surface to crack or peel.
Share a sketch, tech pack, reference photo or just your logo. We reply within one working day with options, a sample plan and pricing for your quantities. Minimum order: 10 pieces per design.
