Quick Answer
Under scrubs, most nurses wear a thin, fitted underscrub top — soft, opaque, and cut close enough to disappear under the uniform. Pick short sleeves for hot units, long sleeves for cold ones, and a tone close to your skin or scrub color so nothing shows through. Fitted beats loose.
Ask ten nurses what they wear under their scrubs and you will get ten confident, completely different answers — an old concert tee, a compression top borrowed from the gym, nothing at all. This guide is the answer I give when someone asks me directly on the floor: what actually works, layer by layer, for a real 12-hour shift.
The short answer: a purpose-built underscrub top
The layer that solves the most problems at once is an underscrub — a thin, fitted top made to sit under a scrub top the way the scrub top sits over you: invisibly. It closes the neckline gap when you bend over a patient, keeps you warm in over-air-conditioned units, softens rough scrub seams, and keeps lighter uniforms from showing everything underneath.
Ala is a nurse-founded underscrub brand from St. George, Utah, created by sisters Alyssa and Alanah. We started making these because the borrowed-from-somewhere-else layers — undershirts, base layers, gym tops — all fail in some specific way over a long shift. If you want the full category deep-dive, our Underscrubs 101 guide covers construction, fabric weights, and care; this post stays on the practical question of what to put on in the morning.
Tops: what goes under the scrub top
Start with sleeve length, because it is the decision you will notice all shift. Short sleeves disappear under any scrub top and run cooler; long sleeves add real warmth and coverage, and a thumbhole or fitted cuff keeps them from riding up when you glove. If your hospital runs cold — most do — long sleeve is the default answer. If you float between units, keep one of each in the rotation.
Then fabric. Ala makes underscrubs in six signature fabrics, priced between $38 and $68, sized XS through XL. The differences are real: a smooth compression-style knit holds its line under a fitted top, a brushed knit reads warmer for winter floors, a featherweight knit stays cool through a summer med-surg shift. The full breakdown lives on our fabrics page — match the fabric to your unit's climate and the rest takes care of itself.
Bottoms: what goes under scrub pants
Scrub pants are more forgiving than scrub tops, so most nurses keep it simple: a seamless, breathable brief or short that will not print lines through thinner pants. In winter, some add a light legging under looser scrub pants — if you do, choose a slim knit rather than a fleece so you can still move at hour ten. The same two rules apply below the waist as above it: smooth seams, and nothing loose enough to bunch.
Hot units vs cold units
The right layer is mostly a climate call. ORs, ICUs, and anywhere with serious air handling run cold enough that a long-sleeve underscrub is standard kit — our guide to staying warm in a cold OR goes deep on that setup. Busy med-surg floors and summer commutes run the other way; there the layer earns its keep by moving sweat off your skin instead of adding warmth, and we wrote up how nurses handle sweat and odor on 12-hour shifts separately. Same garment category, opposite jobs — pick by your unit, not by the season outside.
Under lighter scrub colors
Pale scrub sets show whatever sits underneath — in color and in outline. The rule that works: match your underscrub tone to your skin rather than to the uniform, keep seams smooth, and choose a genuinely opaque knit over a thin cotton tee. Light grey and pale blue sets are forgiving; the brightest uniforms are not, and they deserve their own answer — we wrote the complete guide to exactly that problem: what to wear under white scrubs.
Prints and patterns under scrubs
A print underscrub is the one place a uniform lets a little personality through — the collar and cuffs peek out at the neckline and wrist, and the rest stays professional. If your unit's dress code allows it, a pattern in a muted palette reads polished rather than loud. Ala's Beige Leopard FlexForm is a leopard print underscrub with gentle compression, in sizes XS through L — see the Beige Leopard FlexForm.
How it should fit
Fitted, not tight. An underscrub should trace your line without restricting you — close through the torso so it disappears, easy through the shoulders so a reach or a transfer never pulls at you. Loose is the failure mode: extra fabric bunches at the waistband and prints through the scrub top, which is exactly what the layer exists to prevent. When in doubt, check the size chart on the product page; sizes run XS through XL.
Frequently asked
Do you really need something under scrubs?
Most nurses end up wearing one, yes. An underscrub adds warmth in cold units, keeps necklines modest when you bend, stops see-through with lighter uniforms, and moves sweat off your skin on long shifts. Plenty of nurses try a regular tee first — then switch once the bunching starts.
What do nurses wear under scrubs in summer?
A short-sleeve underscrub in a light, breathable fabric — thin enough to stay cool, opaque enough to do its job. In summer the layer earns its keep by wicking sweat and stopping scrub fabric from sticking to your back. Skip heavy cotton; it holds moisture for hours.
Can you wear a regular t-shirt under scrubs?
You can, but it usually shows. Regular tees are cut loose, so they bunch at the waist, gap at the neckline, and print visible lines through a scrub top. A purpose-built underscrub is cut slim with smooth seams, which is the whole difference.
Should an underscrub be tight or loose?
Fitted, not tight. You want it close enough to disappear under the uniform without restricting your shoulders or riding up when you reach. Check the product size chart if you are between sizes — Ala underscrubs run XS through XL.
Want to keep reading?
- How to stay warm in a cold OR — the cold-unit layering setup, in detail
- Sweat, odor, and 12-hour shifts — the hot-floor version of this problem
