A summer work shirt has two separate jobs: protecting your skin from UV, and letting your body get rid of heat. They aren't the same thing. Long sleeves and a UPF rating look after the first. Fabric weight, airflow, fit and colour decide the second. The best shirt for your crew is the one that does both well enough for the work they actually do.
Job one: sun protection
You can't feel UV. The heat you feel on your skin is infrared, and Cancer Council notes that UV can be high even on cool and overcast days. So how hot it feels is no guide to how much protection you need.
- Long sleeves cover the most skin. Cancer Council Australia's SunSmart advice is to choose clothing that covers as much skin as possible, and it names collared, long-sleeved shirts as the example. Covered arms also don't depend on sunscreen being reapplied through the day.
- A UPF rating tells you how much UV the fabric itself blocks. Look for UPF 50+ on garments tested to the Australian standard (AS 4399). A thin or loosely woven shirt without a rating may let more through than you'd expect.
- Collars matter. The back of the neck cops a lot of sun on outdoor jobs, and a collar you can turn up helps.
Job two: staying comfortable in the heat
This is where sleeve length isn't the whole story. A long sleeve is an extra layer of fabric. In still, humid air some people will feel warmer in it than with bare arms, especially if the shirt is heavy, tight or doesn't breathe. What makes a shirt more comfortable in the heat is mostly:
- Fabric weight. Lighter fabric holds less heat and dries faster.
- Airflow. Vents, mesh panels and a looser cut let air move across your skin.
- Fit. A slightly relaxed fit beats a snug one, so don't size down for a tidy look.
- Colour. Lighter colours generally absorb less heat from direct sun than dark ones.
- Sweat handling. Some fabrics soak sweat up, others dry quickly (more on that below).
So the practical answer for long days in the sun is usually a lightweight, breathable long sleeve: you get the sun protection without adding much heat. It's a trade-off you manage, not a shirt that makes you cooler.
Long sleeve, short sleeve or sleeveless?
- Long sleeve for anyone working in direct sun for hours: site crews, landscapers, farm and outdoor workers.
- Short sleeve for work that's mostly under cover, in the shade or indoors: workshops, warehouses, drivers. Arms in the sun still need sunscreen.
- Sleeveless gives the most airflow for hot indoor or shaded work, but no arm protection. It isn't a good pick for full days outdoors.
Many teams mix them: long sleeve for the site crew, short sleeve for the workshop. Everyone wears the same range and colour, so the uniform still looks consistent.
Cotton or polyester in the heat?
Lightweight cotton twill feels soft against the skin, soaks up sweat and stands up to hard wear. Pilbara shirts are a good example. They're 150 GSM, 100% cotton twill, mercerised and double pre-shrunk, with twin-needle stitching and bar tacks at the stress points. Most colours are rated UPF 50+ under AS 4399:2020 (the Stone colour is excluded). The trade-off is that cotton holds on to sweat on very humid days and creases more.
Very lightweight polyester ripstop is the alternative when airflow and quick drying are the priority. Syzmik's Outdoor shirts are 100 GSM ripstop, the lightest Syzmik makes, with large underarm mesh and back venting, roll-up tab sleeves and a collar that sits up against sun and wind. They dry quickly and pack small. Sun ratings vary by colour, so check the product page for the colour you want.
As a rough guide, choose cotton for heavy wear and if your crew prefers the feel of natural fibre. Look at the vented polyester for long, hot days on foot, on the water or in humid conditions, and check the UPF rating for the colour you choose.
Open front or closed front?
Pilbara makes both.
- Open front (buttons all the way down) is easy on and off, and easy to vent on a hot afternoon.
- Closed front (a pull-over with a short button placket) has a cleaner look under a harness or vest, and nothing snags.
It's mostly personal preference, so ask your team.
Fit for the whole crew
The Pilbara range comes in separate men's, women's and kids' cuts, so everyone gets a shirt that fits properly rather than a unisex compromise.
Adding your logo
Cotton twill shirts like Pilbara take embroidery well. On ultra-light polyester shirts, the fabric is thin enough that we advise on each logo individually rather than promising one method for everything. Send us your logo and we'll recommend what suits that shirt.
Where to look
- Pilbara work shirts: men's, women's and kids', long and short sleeve, open and closed front
- Syzmik Outdoor shirts, 100 GSM vented ripstop: men's long sleeve, women's long sleeve, or browse all Syzmik workwear
- Ordering for a crew? Tell us what you need and we'll help you choose.