Fully Customizable
Fitness shorts that keep the inseam, liner, and bartack you approved.
Fitness shorts lose buyers when the liner rides up, the split hem opens, the drawcord feels cheap, or the inseam changes between sample and bulk. We cut gym shorts, training shorts, running shorts, and hybrid lifestyle shorts to your tech pack in Polyester-Spandex, Nylon-Spandex, lightweight woven, or recycled performance fabrics, 120–260 GSM, then sample the fit and construction before production.
Minimum 10 pieces per design and colorway. Sampling 7–10 business days. Bulk 3–5 weeks after approval, depending on volume and construction. Pricing scales with quantity. Private label for brands, retailers, and fitness businesses in the USA, UK, Australia, and Europe.
Fitness short fabrics
The fabric specification depends on whether the short is for running, gym training, hybrid lifestyle use, or a lined performance program. A running split short and a heavier gym short should not be built from the same roll without checking movement, opacity, and recovery.
We work with Polyester-Spandex, Nylon-Spandex, lightweight woven, and recycled performance fabrics from 120–260 GSM. Fabric is selected based on stretch, breathability, durability, liner requirements, and the intended inseam.
Key points
- 120–260 GSM fabric range for running, training, and lifestyle shorts
- Polyester-Spandex and Nylon-Spandex for stretch performance
- Lightweight woven fabrics for running and hybrid shorts
- Recycled performance fabrics available when specified
- Fabric selected according to inseam, liner, and use
- Material specifications can be matched to your tech pack
Performance and moisture control
Fitness shorts need to manage heat, sweat, and repeated movement without feeling heavy or restrictive. Fabric and liner choices affect comfort during running, lifting, and high-intensity training.
We use moisture-wicking, quick-dry, four-way stretch, breathable mesh ventilation, and anti-odor finishes where required. Mesh panels and liner fabrics can be specified according to the workout environment.
Key points
- Moisture-wicking construction helps manage sweat
- Quick-dry fabrics support training and running use
- Four-way stretch can be used for mobility
- Mesh ventilation can be added to selected panels
- Anti-odor finishes are available when specified
Bartack and seam durability
Fitness shorts are stressed at the crotch, pockets, waistband, vents, and split hems. Weak construction can lead to open seams, loose pocket bags, or hems that unravel after washing.
Construction can include reinforced seams, bartack stress-point reinforcement, overlock stitching, and flatlock construction. These details are reviewed during sampling and QC so the bulk order follows the approved build.
Key points
- Bartacks added at selected high-stress points
- Reinforced seams for repeated training and washing
- Overlock and flatlock construction available by design
- Split hems, pocket bags, and crotch points reviewed during sampling
- Stitching and measurements checked before packing
Fit, liner, and functional design
The fit of a fitness short depends on rise, inseam, liner, waistband, pocket layout, and side vent placement. These details need to be built into the pattern rather than adjusted after bulk production starts.
We develop multiple inseam lengths, compression liners, zip pockets, side vents, elastic waistbands, adjustable drawcords, and ergonomic panels according to your tech pack and approved sample.
Key points
- Multiple inseam lengths can be developed
- Compression liners or built-in liners can be added
- Zip pockets, vents, and drawcords can be specified
- Waistband and rise are reviewed during sampling
- Approved measurements become the production reference for bulk
Customization options
Choose from our full range of decoration techniques to create your signature look.
Sublimation and performance printing
Sublimation, screen print, silicone transfer, reflective graphics, heat-transfer branding, side-leg artwork, hem marks, and pocket-area logos can be developed for gym, running, and lifestyle shorts. Each method is selected according to fabric stretch, seam placement, and wash expectations.
Embroidery and patches
Embroidered logos, tonal embroidery, 3D embroidery, woven patches, and appliqué details can be used where the fabric, panel, and seam allowance can support the stitch without pulling. Placement is reviewed on the sample so the mark does not interfere with pockets, liners, or split hems.
Private label branding
Woven labels, heat-transfer labels, branded drawcords, size labels, care labels, hangtags, barcode stickers, polybags, and retail packaging can be set to your brand guidelines. Approving these at sampling keeps bulk production aligned with your pack-out.
Fabric and color development
Custom color matching, fabric textures, contrast panels, mesh placements, liner colors, recycled or sustainable materials, and performance finishes can be developed for each short. The result is a production-ready short built around your inseam, liner, and brand system.
Design inspiration
Design baselines
Fully customizable starting points for your tech pack.
Fully Customizable
#2 Women's mesh-panel training short
Fully Customizable
#3 Men's color-block training short
Fully Customizable
#4 Men's sublimated performance short
How we deliver
Branding, logistics & shipping
Every order is managed from label printing to your doorstep.
Private label production
Every order can ship with your branded labels, drawcords, hangtags, packaging, woven patches, barcodes, and retail-ready finishing. Spec this at sampling so bulk isn't waiting on trims.
Quality control and inspection
Each piece is checked before it reaches you (fabric, measurement, stitching, print, color, then an AQL review before packing) so the inseam, liner, and bartack you approved in sampling are what you get in bulk.
Global logistics
Packed to retailer spec and shipped through logistics partners. Export documentation included for USA, UK, Australia, and Europe programs.
Frequently asked questions
Everything you need to know about custom manufacturing with RAS Sportswear.
What is the minimum order quantity for custom fitness shorts?
Our minimum order quantity is 10 pieces per design and colorway. This lets brands, retailers, and fitness businesses test an inseam, fabric, or colorway before scaling.
Can you manufacture fitness shorts from our tech pack?
Yes. We can cut and sew gym shorts, training shorts, running shorts, and hybrid lifestyle shorts to your tech pack, including fabric, GSM, inseam, liner, waistband, pockets, trims, and branding.
What fabrics do you use for fitness shorts?
We work with Polyester-Spandex, Nylon-Spandex, lightweight woven, and recycled performance fabrics in the 120–260 GSM range, selected according to training, running, or lifestyle use.
Can you make shorts with liners or compression inner shorts?
Yes. Compression liners and built-in liners can be developed as part of the pattern. Fit, rise, inseam, and liner behavior are reviewed during sampling.
Can inseam length be customized?
Yes. Multiple inseam lengths can be developed for running, gym, training, or lifestyle shorts. The approved sample becomes the reference for bulk measurements.
What construction details improve durability?
Construction can include reinforced seams, bartack stress-point reinforcement, overlock stitching, and flatlock construction for split hems, pocket bags, crotch points, and other high-stress areas.
Do you provide samples before bulk production?
Yes. A physical sample is produced before bulk manufacturing. Sampling usually takes 7–10 business days, depending on fabric, liner, trims, and decoration.
How long does bulk fitness shorts production take?
Bulk production generally takes 3–5 weeks after sample approval. Final lead time depends on quantity, construction, decoration, and trim requirements.
What branding options are available for fitness shorts?
Options include sublimation, screen print, silicone transfer, reflective graphics, heat-transfer branding, embroidery, woven patches, branded drawcords, hangtags, and retail packaging.
What quality checks are performed before shipping?
QC can include checks for fabric, measurements, stitching, print, color, inseam, liner, and bartack points, followed by an AQL review before packing.