When you want more warmth or coverage at work, there are two obvious options: wear an underscrub beneath your regular scrub top or choose a long-sleeve scrub top instead. Both can keep your arms covered, but they can feel very different several hours into a busy shift.
Underscrubs give you the flexibility of layering. You can add a fitted long-sleeve shirt when the hospital feels freezing and stick with your regular short-sleeve scrubs when you don't need the extra warmth. Long-sleeve scrubs take a different approach, giving you built-in arm coverage without requiring two shirts.
So, which is better for nurses: underscrubs or long-sleeve scrubs? The answer depends on more than warmth. Breathability, freedom of movement, changing workplace temperatures, convenience, fabric, and even how much laundry you want to deal with can all influence which option works better for your shift.
In this guide, we'll compare underscrubs vs. long-sleeve scrubs side by side, look at the advantages of each, and help you decide which makes more sense for your work environment and personal comfort.
What Are Underscrubs?
Underscrubs are lightweight clothing or base layers worn underneath medical scrubs to provide extra comfort, coverage, or warmth during a shift. Think of them as the healthcare version of a base layer—they sit between your skin and your scrub uniform without adding too much bulk.
Underscrubs can take several forms depending on what feels comfortable and what your workplace allows. Common options include:
- Fitted short-sleeve T-shirts
- Long-sleeve underscrub shirts
- Tank tops and camisoles
- Compression shirts
- Compression shorts
- Leggings
- Lightweight thermal base layers
You don't necessarily need clothing specifically labeled as an "underscrub." A comfortable, lightweight shirt or base layer can work just as well as long as it fits smoothly beneath your uniform and doesn't restrict your movement.
Why Do Healthcare Professionals Wear Underscrubs?
There are several reasons nurses, doctors, technicians, and other healthcare professionals choose to wear an extra layer beneath their scrubs.
- Extra warmth: Hospitals and clinics can get surprisingly cold, especially during long or overnight shifts. A fitted long-sleeve shirt or thin thermal layer can provide extra warmth without the bulk of a sweater.
- Better moisture management: Healthcare work can also be physically demanding. Walking between rooms, lifting patients, and staying on your feet for hours can make you sweat. Lightweight, moisture-managing underscrubs can help you feel more comfortable during active shifts.
- More coverage: Scrub tops can shift when you bend, reach, or lift your arms. An undershirt or camisole can provide extra coverage around the neckline and waist. Base layers can also be helpful beneath lighter-colored or thinner scrub fabrics.
- Less friction: Having a soft layer between your skin and your uniform may reduce irritation from seams or fabric rubbing against the skin throughout a long shift.
Ultimately, wearing underscrubs is a personal choice in many workplaces. Some healthcare workers wear them every shift, while others prefer as few layers as possible. The best option is one that keeps you comfortable, allows you to move freely, and follows your facility's dress and infection-control policies.

What Are Long-Sleeve Scrubs?
Long-sleeve scrubs are scrub tops designed with full-length sleeves built directly into the garment. Unlike underscrubs, which are worn as a separate layer beneath a traditional short-sleeve scrub top, long-sleeve scrubs provide arm coverage in a single piece.
They're a practical option for nurses who prefer more coverage but don't necessarily want to wear two shirts throughout an entire shift.
Depending on the design, long-sleeve scrub tops may feature fitted or slightly relaxed sleeves, stretchy cuffs, breathable fabrics, and the same functional details you'd expect from regular scrubs, such as pockets and flexible construction.
Why Do Nurses Choose Long-Sleeve Scrubs?
One of the biggest reasons is simplicity. Instead of choosing an undershirt and then layering a scrub top over it, you can put on one garment and have the coverage you want.
This can be particularly appealing if you dislike the feeling of multiple layers rubbing, shifting, or bunching as you move.
Long-sleeve scrubs can also offer:
- Full arm coverage without a separate undershirt
- Less bulk compared with wearing two full layers
- A more integrated, uniform appearance
- Easier dressing and fewer garments to wash
- Comfortable coverage in moderately cool environments
However, that simplicity also means less flexibility. With an underscrub, you can choose whether to add an extra layer depending on the temperature. With long-sleeve scrubs, the sleeves are obviously staying with you for the entire shift.
Fabric therefore becomes especially important. A lightweight, breathable long-sleeve scrub can feel very different from a thick one, particularly when you're walking between rooms and staying active for hours.
Long sleeves may also be subject to workplace or infection-control requirements in certain clinical environments. Nurses should always follow their facility's policies regarding sleeve length and clothing worn during patient care.
Ultimately, long-sleeve scrubs are best thought of as an all-in-one alternative to layering a long-sleeve underscrub beneath a traditional scrub top. Whether that's more comfortable than wearing two separate layers is where the real comparison begins.

Underscrubs vs. Long-Sleeve Scrubs: Quick Comparison
At first glance, underscrubs and long-sleeve scrubs may look similar since both can provide full arm coverage. The main difference is how that coverage is achieved: an underscrub adds a second layer beneath a short-sleeve scrub top, while long-sleeve scrubs provide that coverage in a single garment.
Here's a quick look at how they compare:
| Feature | Underscrubs | Long-Sleeve Scrubs |
|---|---|---|
| Number of layers | Two layers | One layer |
| Warmth | Generally warmer due to layering | Moderate, depending on fabric |
| Temperature flexibility | High — layer can be added or removed | Lower — sleeves are built in |
| Breathability | Depends on both layers | Depends mainly on scrub fabric |
| Freedom of movement | Good when properly fitted | No separate layer to bunch or shift |
| Convenience | Requires an additional garment | Simple, all-in-one design |
| Appearance | Visible layered look | More integrated uniform look |
| Laundry | Two garments to wash | One garment |
| Best for | Changing temperatures and extra warmth | Consistent coverage with fewer layers |
Underscrubs vs. Long-Sleeve Scrubs: Key Differences
While both options provide additional arm coverage, the experience of wearing an underscrub can be quite different from wearing a long-sleeve scrub top. Here are the main differences nurses should consider.
Warmth & Temperature Control
Underscrubs generally provide more warmth because you're wearing two layers: the underscrub itself and your regular scrub top. This can be especially useful in cold hospitals, during night shifts, or throughout winter.
They also give you more control over layering. You can wear your regular scrubs alone on warmer days and add an underscrub whenever you need extra warmth.
Long-sleeve scrubs provide consistent arm coverage without the additional layer. They may be a better choice when you want some coverage but don't want the extra warmth or bulk of two shirts.
Comfort & Breathability
Two layers naturally mean more fabric against your body. Depending on the materials, an underscrub and scrub top combination can feel warmer and may be less breathable during a busy, physically active shift.
Long-sleeve scrubs eliminate that second layer. A lightweight, breathable scrub fabric can provide full coverage while potentially feeling less bulky.
Whichever option you choose, look for fabrics that are breathable, lightweight, stretchy, and comfortable against the skin.
Freedom of Movement
A well-fitted underscrub shouldn't significantly restrict movement. However, an undershirt that's too loose can bunch underneath your scrub top, while one that's too tight may feel restrictive around the shoulders and arms.
Long-sleeve scrubs avoid the friction of two separate tops. With enough stretch and room through the shoulders, they can provide a more streamlined feel when you're reaching, bending, lifting, and moving throughout your shift.
Convenience & Layering
This is where the biggest trade-off appears.
Underscrubs offer more flexibility. You can add or remove a layer depending on the temperature and continue wearing the same short-sleeve scrub sets throughout the year.
Long-sleeve scrubs offer more simplicity. There's no separate shirt to coordinate, put on, or wash after your shift. You get the coverage you want from one garment.
If temperatures at your workplace change frequently, layering may be more practical. If they're relatively consistent, the simplicity of long-sleeve scrubs may be more appealing.
Style & Professional Appearance
Underscrubs create a visible layered look, with the long sleeves extending beneath a short-sleeve scrub top. Matching the underscrub to your scrub color can create a coordinated appearance, while contrasting colors make the layering more noticeable.
Long-sleeve scrubs have a more integrated look because the sleeves are part of the scrub top itself. There's no visible transition between two different garments, which can create a cleaner and more streamlined uniform.
Ultimately, this comes down to personal preference. Some nurses like the versatility of layering, while others prefer the simplicity of having everything built into one scrub top.
Which Is Better for Hot vs. Cold Healthcare Settings?
Your work environment can be one of the biggest factors in deciding between underscrubs and long-sleeve scrubs. A combination that feels comfortable in a freezing hospital may quickly become too warm during a busy shift in a warmer setting.
For Cold Hospitals and Winter Shifts
If staying warm is your main concern, underscrubs usually have the advantage. Wearing a long-sleeve underscrub beneath a regular scrub top creates two layers, which can provide more warmth than a single long-sleeve scrub top.
They're particularly useful for nurses who work:
- In heavily air-conditioned units
- During overnight shifts
- In colder climates
- In areas where temperatures vary throughout the day
The biggest benefit is flexibility. When you don't need the extra warmth, you can simply wear your regular short-sleeve scrubs without the base layer.
Long-sleeve scrubs can still be a good option in cooler environments, especially if you want arm coverage without the bulk of two shirts.
For Warm and Active Shifts
In warmer environments, long-sleeve scrubs may be the more comfortable of the two options because you're only wearing one layer.
A lightweight, breathable long-sleeve scrub top can provide arm coverage without trapping as much heat as an underscrub worn beneath another shirt. This may be particularly useful for nurses who spend much of their shift walking, lifting, bending, and moving between rooms.
Fabric still matters, though. A heavy long-sleeve scrub can feel hotter than two very lightweight layers, so pay attention to breathability, fabric weight, and moisture management rather than sleeve length alone.
Ultimately, choose based on your actual workplace temperature and activity level, not just the season. A hospital can feel freezing in the middle of summer, while a busy unit can have you feeling warm even during winter.
When Should You Choose Underscrubs?
Underscrubs are a great choice when flexibility and adjustable warmth are your priorities. Because they're a separate layer, you can easily pair them with the short-sleeve scrubs you already own and change your setup depending on the weather or workplace temperature.
You may prefer underscrubs if:
- Your hospital or clinic tends to be cold
- Workplace temperatures change throughout the day
- You work overnight or winter shifts
- You already own plenty of short-sleeve scrub tops
- You want extra warmth without buying a separate set of long-sleeve scrubs
- You like mixing and matching colors
- You don't mind wearing two layers
Underscrubs can also be practical if you move between different environments. For example, you might start your shift in a chilly unit but spend part of the day somewhere warmer. Having separate layers gives you more flexibility than committing to long sleeves for the entire shift.
Just make sure the underscrub fits comfortably beneath your uniform. Lightweight, fitted, stretchy styles tend to work best because they add warmth and coverage without creating unnecessary bulk.
Choose underscrubs if you want the versatility to adjust your layers depending on your shift, workplace temperature, and personal comfort.

When Should You Choose Long-Sleeve Scrubs?
Long-sleeve scrubs may be the better choice if you want full arm coverage without wearing an additional layer. Instead of combining an underscrub with a short-sleeve top, you get the coverage you need from a single garment.
You may prefer long-sleeve scrubs if:
- You dislike the feeling of wearing two shirts
- You want full arm coverage with less bulk
- Your workplace temperature stays relatively consistent
- You tend to get warm while moving around
- You don't want an undershirt bunching beneath your scrubs
- You prefer a simple, coordinated uniform
- You want fewer garments to wash after your shift
Long-sleeve scrubs can be particularly useful when you want coverage but don't necessarily need the additional warmth that comes from layering. Choosing a lightweight, stretchy, and breathable fabric can also help keep the top comfortable during active shifts.
Keep in mind that policies regarding long sleeves can vary between healthcare facilities and clinical environments. OSHA requires employers to select appropriate protective clothing based on the task and anticipated exposure, so always follow your facility's dress code, PPE, and infection-control requirements.
Choose long-sleeve scrubs if you prefer built-in coverage, fewer layers, and a simple all-in-one uniform.
Where to Buy Comfortable Scrubs for Long Shifts
Whether you prefer layering with an underscrub or keeping things simple with a long-sleeve scrub top, the right scrubs should keep you comfortable and moving freely throughout your shift.
At Long Shift Scrubs, you can find medical scrubs designed for healthcare professionals who spend long hours on the move. When shopping, look for breathable, flexible fabrics, practical pockets, and a fit that gives you enough room to bend, reach, and move comfortably.
If you plan to wear underscrubs regularly, consider how your scrub top fits with an extra layer underneath. You want enough room through the shoulders and arms without making the uniform feel oversized. If you prefer fewer layers, choosing comfortable scrubs with the coverage and fit you need can simplify your everyday uniform.
Explore Long Shift Scrubs to find comfortable scrub styles and colors that fit the way you prefer to dress for your shift.
Final Thoughts
When comparing underscrubs vs. long-sleeve scrubs, there isn't one option that's better for every nurse. The right choice depends on your workplace temperature, how active you are during a shift, and whether you value flexible layering or a simpler uniform.
Underscrubs are the better choice when you want adjustable warmth and versatility. You can add a layer on colder days and skip it when your workplace feels warmer.
Long-sleeve scrubs, on the other hand, are ideal when you want built-in arm coverage without wearing two shirts. They offer a streamlined alternative that can feel less bulky and requires fewer pieces to put together.
Ultimately, it comes down to a simple trade-off: underscrubs offer greater layering flexibility, while long-sleeve scrubs offer greater simplicity. Whichever you choose, prioritize breathable fabrics, comfortable stretch, freedom of movement, and your facility's dress and infection-control policies.
FAQs
Are long-sleeve scrubs better than wearing an underscrub?
Not necessarily. Long-sleeve scrubs are better if you prefer fewer layers and built-in coverage, while underscrubs are more versatile because you can add or remove the extra layer depending on the temperature.
Are long-sleeve scrubs allowed in hospitals?
Policies vary between hospitals, departments, and clinical environments. Some workplaces may have restrictions on long sleeves during certain patient-care activities, so always follow your facility's dress code and infection-control requirements.
Should underscrubs be tight or loose?
An underscrub should generally be fitted but not restrictive. A close fit helps prevent fabric from bunching underneath your scrub top, while enough stretch ensures you can move comfortably.
What fabric is best for underscrubs?
Look for lightweight fabrics that balance breathability, softness, stretch, and moisture management. Performance blends containing polyester and elastane are common, while cotton and other soft blends may appeal to people who prioritize feel against the skin.
Which is better for nurses: underscrubs or long-sleeve scrubs?
Choose underscrubs for flexibility, adjustable warmth, and easy layering. Choose long-sleeve scrubs for built-in coverage, fewer layers, and a streamlined uniform. Neither is universally better—the best option is the one that keeps you comfortable throughout your shift while meeting your workplace requirements.