The underscrub that ER nurses keep stealing
Navy long-sleeve underscrub for cold ERs, transport rooms, and the seasonal Bay-area chill. Sits flush under your scrub top — no bulk, full warmth.
- Slim crew-neck cut, sits flush under V-neck or button-neck top
- Thumb holes at cuff — keeps sleeve down when gloving
- Same 4-way stretch fabric, lighter weight knit
- Navy: dark enough to hide under any color top
Why this style works
Underlayer Long Sleeve
We didn’t plan to make underscrubs. Then half our pilot ER customers asked for one. The hardest part was getting the fabric to disappear under a V-neck top — too thick and you look bulky, too thin and you don’t get the warmth. We landed on a knit that’s 30% lighter than the main fabric but with the same stretch. Thumb holes were added at customer request after three rounds of glove-up tests.
- Water-repellentLight splashes bead off — coffee, sanitizer, saline.
- BreathableComfortable feel in warm rooms and through repeated movement.
- Four-way stretchBend, reach, sit, walk — fabric moves with you, not against.
- Lint-resistantWon’t pick up pet hair, gauze fluff, or bandage fibers easily.
- Slim crew-neck cut — disappears under V-neck tops
- Thumb-hole cuffs — sleeve stays put under gloves
- Lighter knit (same fiber blend, lower GSM)
- Navy — neutral under any solid or print top
Wash cold inside-out, tumble dry low, no fabric softener. Treatments are preserved through 50+ wash cycles when cared for as directed.
| Size | US | Chest | Waist | Hip |
|---|---|---|---|---|
| XS | 0-2 | 31-33 | 24-26 | 34-36 |
| S | 4-6 | 34-36 | 27-29 | 37-39 |
| M | 8-10 | 37-39 | 30-32 | 40-42 |
| L | 12-14 | 40-43 | 33-36 | 43-46 |
| XL | 16-18 | 44-47 | 37-40 | 47-50 |
| 2XL | 20-22 | 48-51 | 41-44 | 51-54 |
| 3XL | 24-26 | 52-55 | 45-48 | 55-58 |
- Slim crew-neck — sized to wear under a scrub top, not over
- Order your usual scrub-top size for layering room
- Thumb-hole cuffs sized for adult thumbs (≥5’2″ wearer)
Explore more styles
Outfit your team. One clear order, one point of contact.
Sample Kit first, then 10+ sets at clinic pricing. We handle roster, proofing, embroidery, and shipping.
Ordering for staff?
10+ sets get team pricing + roster sign-off + embroidery proof.
Trial Team (10-24): 92% MSRP · Core Team (25-49): 88-90% · Multi-site (50+) and Annual programs available. Saive walks every team order personally.
Who this is built for
The Underlayer Long Sleeve is built for clinical staff working in cold operatories (68-70°F), early-morning open-ups, refrigerated lab rooms, or seasonal cold months.
Common questions about the Underlayer Long Sleeve
Who is the Underlayer Long Sleeve built for?
Anyone working in cold operatories (most dental offices run 68-70°F), 6am clinic open-ups, refrigerated lab rooms, or through seasonal cold months. Adds warmth without bulk.
How does it layer under a V Top or crew?
Cut close enough not to bulk under thinner outer scrub tops. Compatible with every LumiScrubs top in the catalog — won’t show seam through a V-neck or crew opening.
Will the color show through a white scrub top?
White or nude colorways recommended under white-on-white outer scrubs. Bolder colors will be visible — intentional if you want a layered look, avoid if you want clinical neutral.
How thick is the fabric?
Thin, breathable single-knit — designed to add warmth without trapping sweat by mid-shift. Not a thermal base layer.
What sizes are available?
XS-3XL standard.
Fit & care
- Fabric: 72% polyester / 21% rayon / 7% spandex — four-way stretch, water-repellent, wrinkle-resistant.
- Care: Cold or warm wash <30°C, inside out, mesh bag, gentle cycle. Hang-dry tops, tumble-dry pants on low.
- Replace cadence: Heavy chairside roles 9-12 months; lighter clinical 12-18 months.
- Returns: 30 days on blank items. Embroidered items are final sale.
- Quality guarantee: 365 days against seam, zipper, embroidery defects.
- Full size guide · Shipping & returns policy




















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