Picking a colour you like is the easy part. Getting the fit and fabric right is what actually decides whether your scrubs hold up over a 12-hour summer shift — whether you're sweating through the afternoon, fighting with a waistband that's rolled down by lunchtime, or layering up for an air-conditioned theatre that swings 15 degrees cooler than the corridor outside.
This guide covers the practical side of dressing for summer: how to size correctly when the heat changes how fabric behaves, which features actually matter for comfort, and how to layer sensibly when your shift takes you between very different environments in the same day.
Getting your size right for summer
Sizing scrubs for summer isn't quite the same as sizing them for the rest of the year, for one simple reason: heat changes how fabric and body both behave.
Sweat changes how fabric sits on you. Fabric that feels perfectly fitted in a fitting room can feel tight and clingy once you're a few hours into a hot shift. If you're between two sizes, summer is usually the season to size up rather than down — particularly in stretch-light fabrics that don't have much give once damp.
Stretch fabrics behave differently. Koi's four-way stretch ranges, including Next Gen (a 73% polyester, 22% rayon, 5% spandex stretch twill) and Cureology (a 100% polyester stretch twill), are designed to move with you and recover their shape afterwards, so they're more forgiving of a true-to-size fit than non-stretch cotton-blends. If you're choosing between a stretch and non-stretch style in the same size, the stretch version will generally feel less restrictive through a long shift.
Check the brand's own size note, not just the size chart. Fit varies more between styles than people expect — some Koi tops are cut generously and recommend sizing down, others run closer to true size. It's always worth checking the specific product page rather than assuming sizing is consistent across the whole range.
Fabric features worth checking before you buy
Not all "breathable" scrubs are equally breathable. A few specific features make a measurable difference in summer:
Moisture-wicking fabric pulls sweat away from the skin and spreads it across the fabric surface so it evaporates faster, rather than sitting against you. This matters more in summer than any other season — look for it explicitly on the product page rather than assuming all polyester blends manage moisture the same way.
Four-way stretch moves with you in every direction, not just side to side. It reduces the need to size up purely for comfort, since the fabric itself has more give built in.
Side slits and vented seams improve airflow around the hips and waist without compromising coverage — a small detail that makes a noticeable difference on a hot ward.
Wrinkle resistance and quick-drying fabric matter more in summer because you're more likely to be washing scrubs daily rather than every few shifts. A fabric that comes out of the wash ready to wear, with no ironing, saves real time when laundry is happening more often.
Layering for shifts that change temperature
Few jobs spend eight hours in one constant temperature. A typical summer shift might take you from a warm corridor to a chilled theatre, an air-conditioned office, or an early-morning commute that's still cool before the day heats up. A few layering principles help:
Keep your base layer light. A lightweight, moisture-wicking underscrub top works as your constant layer — thin enough not to add bulk in the heat, but enough to wick sweat away from the skin before it reaches your scrub top.
Add, don't swap. Rather than choosing between a "summer uniform" and a "winter uniform," keep one easy-care fleece or jacket on hand that you can put on and take off as the day's temperature shifts — useful for early starts, air-conditioned wards, or theatre work where the room is kept noticeably cooler than the rest of the building.
Choose layers in fabrics that match your scrubs' care routine. If your scrubs are machine washable at 60°C, look for layering pieces that can keep up with the same wash cycle — there's no point owning a uniform that's easy to care for if your jacket needs separate, gentler washing every time.
Caring for your scrubs through a busy summer
Hot weather usually means washing scrubs more often, which makes care routine worth getting right:
- Wash at the temperature stated on the label — most Koi fabrics are designed for 60°C washes without shrinking or fading, but always check the individual care label, since this can vary by collection.
- Avoid fabric softener on technical or moisture-wicking fabrics, as it can coat the fibres and reduce their ability to wick sweat away from the skin.
- Air dry where possible. Tumble drying on low is usually fine for wrinkle-resistant fabrics, but air drying helps colours and stretch last longer over repeated washes.
The takeaway
Colour gets all the attention, but fit, fabric and layering are what actually determine whether your scrubs work for you on a long summer shift. Get the size right for how stretch fabric behaves in the heat, check for moisture-wicking and four-way stretch where it matters most, and keep one light layer on hand for the temperature swings most healthcare shifts bring.
If you're also after a colour refresh, our guide to this season's new Koi colours covers the new Pistachio, Bone, Digital Lavender and Pink Dream shades, plus the latest Leslie prints.