A custom training T-shirt should be developed around the activity, fit and care expectations of its users. “Gym shirt” covers many different requirements. Clarify whether your programme prioritises a relaxed silhouette, close fit, lightness, coverage or a particular surface feel.
Translate the activity into a garment brief
Record body length, chest, shoulder, sleeve and armhole requirements, supported by measurement diagrams. Review reaching overhead and the movements relevant to the programme. Note whether the shirt lifts excessively, restricts the arm or gathers uncomfortably at a seam.
Define any side panels, mesh areas or shaped hems in drawings. If you want to change a reference design, list those changes explicitly so the factory does not reproduce features you meant to remove.
Compare fabrics without assuming performance
Request fibre composition, knit construction, weight, finish and colour availability. Compare the selected fabric on a finished sample. Assess surface feel, coverage, drape and stretch in the same conditions. A softer finish or lighter weight may be desirable for one range and inappropriate for another.
- Identify whether moisture or drying claims are planned.
- Agree the test evidence needed for those claims.
- Check light colours under the intended fit and movement.
- Record any difference between sampling fabric and proposed bulk fabric.
Do not accept the word “technical” as a substitute for a defined property or report.
Review seams and branding on the garment
Inspect the neckline, shoulder seams, underarm and side seams for appearance and contact against the skin. Check seam behaviour when the fabric extends. A visual seam reference should be backed by the required finished construction and an approved sample.
Approve logo size and position on the actual fabric. Heat application, embroidery and printing can change flexibility or surface feel. Include the decorated sample in the care review and keep its artwork version with the production specification.
Questions for a training collection
Can one T-shirt pattern serve training and everyday wear?
It may, if the intended fit and movement checks are satisfied. Review the use cases instead of relying on the garment name.
Should every colour be tested as a separate garment?
Agree the sampling and test plan based on material, finish, colour and claim differences. Do not assume one report covers every variation.
See moisture management versus quick drying, then send your training T-shirt specification with quantities and artwork.