IT & Corporate
Sports and gym t-shirt manufacturer: dry-fit, GSM and what fails in a wash test
Sports kit is the order most likely to be bought as if it were an ordinary t-shirt, and it is the one where that goes wrong fastest.
A cotton tee on a running track absorbs sweat, gets heavy, clings and stays wet. The complaint that follows is never “wrong fabric” — it is “these are uncomfortable”, which is harder to act on. Getting the specification right at order time avoids the whole conversation.
What “dry-fit” actually means
Dry-fit is not a brand and it is not a treatment that washes off if you buy it properly. It describes a polyester knit engineered to move moisture along the fibre to the surface, where it evaporates, instead of soaking into it.
Polyester does not absorb water. That is the entire mechanism. Cotton does absorb, which is exactly why it feels good in still air and terrible during exertion.
Two things to check:
- Is it a knit structure built for wicking, or plain polyester sold as performance? A micro-mesh or honeycomb knit on the inner face moves moisture; a flat polyester jersey mostly just does not absorb, which is not the same thing.
- Is the wicking inherent to the fibre and structure, or a surface finish? Topical finishes wash out. On a garment going through school or gym laundry cycles, that matters within a season.
GSM for performance kit
Lighter than you would choose for a corporate tee.
| GSM | Use |
|---|---|
| 130–140 | Running, athletics, hot-weather match kit |
| 150–160 | The general default for school PE and gym issue |
| 180 | Heavier training tops, cooler climates, longer service life |
Above 180 in polyester the garment starts to feel plasticky during exertion. Below 130 it becomes see-through when wet, which for school kit is a genuine problem and worth stating out loud at spec time.
The three failures that actually show up
1. Print cracking. Standard plastisol screen print on a stretchy performance knit cracks, because the print does not move with the fabric. On sports kit, ask for a print system suited to polyester stretch, or move the branding to a heat-applied transfer or sublimation. A cracked number on a school PE shirt after one season is the most common complaint in this category.
2. Dye migration. Polyester dye can bleed into a print over time, especially light prints on dark garments — a white logo on a red shirt turning pink weeks later. It is preventable with the right underbase, and it is worth naming in the enquiry so whoever is quoting has to think about it.
3. Odour retention. Polyester holds odour more than cotton. If the kit is being worn hard and washed institutionally, ask about an anti-microbial finish, and be realistic: it reduces the problem, it does not eliminate it.
Sublimation, and when it is worth it
Sublimation dyes the image into the polyester rather than laying it on top. The result cannot crack, peel or fade differently from the fabric, because it is the fabric.
It works only on polyester, and only on light grounds — you cannot sublimate white onto a dark shirt. Where it is unbeatable is full-colour, edge-to-edge designs: numbered team kit, panelled club jerseys, anything where the artwork covers the garment.
For a plain shirt with a chest logo, it is overkill and screen print is cheaper. For a 200-piece numbered school athletics set, it is usually the right call.
Numbering and names
If the kit is numbered, decide early how numbers are applied and who owns the list. Individual names and numbers mean a per-garment process, which changes both the price and the lead time — it is no longer a single bulk run.
Also plan for the joiner who arrives in week three. Ask what a run of five replacement shirts costs and how long it takes, before you place the main order rather than after.
What to send for a quote
- Quantity, and the size split if you have it
- The activity — athletics, gym, indoor sport, a one-day event
- Round neck or polo collar
- Whether it needs numbering or individual names
- Artwork, and whether it is a chest logo or a full-coverage design
- Delivery city and the date it must be on site
How we make them
Sri Ganesh Textiles manufactures sports and gym t-shirts in dry-fit polyester alongside our cotton and poly-cotton ranges, from 50 pieces, in Bangalore. Screen printing and embroidery are in-house, with PMS colour matching, and we will tell you when your artwork is better served by a transfer than by a print rather than taking the order and letting it crack later.
School PE kit runs on the academic year the same way school uniforms do: measured in March, delivered before the June intake, sizes held on file for the next one.
See the t-shirt range · school uniforms and PE kit, or request a quote and we will come back inside 24 hours.