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How to Choose the Best Sweat-Proof Undershirt?

How to Choose the Best Sweat-Proof Undershirt?

Do you feel like you tend to sweat a tad too much?

You could be dealing with hyperhidrosis, a condition that causes excessive sweating.

Sweating caused by hyperhidrosis can happen in unusual situations, including mild to cold weather.

You may even sweat without any trigger at all - as you would expect a person to sweat during a gym session for example.

Excessive sweating could also be a symptom of medical conditions such as hyperthyroidism and menopause.

Depending on the severity of your condition, there are ways to manage excessive sweat.

One of the simplest lifestyle solutions for managing too much sweat occurrence is wearing sweat proof undershirts.

In fact, sweat proof undershirts do more than block sweat. Sometimes they determine whether a person is going to have a normal day or an unbearable one.

Beyond blocking sweat, these garments have other excellent benefits such as:

  • Reduced or no pit stains, marks, and odors.
  • Longer usage time for light-colored shirts and suits (saving money).
  • Improved social confidence.
  • Reduced antiperspirant use.

Not all sweat-proof products are equal. The industry grows more competitive by the day, which can be confusing for the customer.

On the one hand, you get to benefit from the range of sweat proof products in the market. But the thought of sifting through the options trying to find the best can be overwhelming.

In this article, we will show you what to consider when choosing a sweat proof undershirt.

The first step to finding the right sweat proof undershirt is looking at your unique lifestyle choices and needs.

Next, you need to determine how serious your sweating is. This will give you an idea of what your next course of action should be.

hyperhidrosis areas
Photo: CastleknockCosmeticsClinic

A Buyer’s Guide to Choosing Sweat Proof Undershirts

Here’s an outline of what to look out for when shopping for sweat proof undershirts:

Sweat Proof Technology

All sweat-proof undershirts share a common feature: sweat protection technology

Each company has unique end products. In most cases, undershirts are designed with a protective layer that targets areas producing the most sweat.

In terms of capability, these are the three main questions a consumer should ask:

  • How long does the undershirt keep you cool and dry on a normal day vs the hottest day?
  • How effectively does the protective barrier keep sweat from transferring to outer garments?
  • Does the undershirt additionally have odor protection?

There are distinct qualities that make a sweat proof undershirt work. Have a look at the thought process behind our design:

The Best Sweat Proof Undershirt
Sweat Proof Undershirt

Fabric Quality

Fabric quality plays a critical role in maximizing a sweat-proof undershirt’s effectiveness.

A consumer should look out for three key features:

  • Comfort
  • Durability
  • Breathability

The right undershirt fabric has to provide a maximum range of motion. It should also be stretchy enough to contour around a body.

Let’s briefly look into the most commonly used fabrics and how they respond to sweat and moisture:


Cotton is a natural product favored for its strength and durability. It is one of the most versatile fibers in the textile industry.

Advantages: weatherproof insulation, softness, breathability, comfort, and hypoallergenic properties.

Disadvantages: Moisture absorption and retention – making it a poor choice for sweaty conditions.


Nylon is a resilient and elastic fiber used for a variety of clothing options.

Advantages: Extremely tough, resistant to abrasion, lightweight, resilient to excessive weather conditions and easy to wash and dye in a wide variety of colors.

Disadvantages: Not very water absorbent and lacks dimensional stability.


Polyester is a  popular fabric in the textile industry due to its resistance to shrinking, stretching and abrasions.

Advantages: Lightweight fabric, heat resistant, breathable, very stain-resistant, wrinkle-resistant, quick-drying, exceptionally strong and stretchable.

Disadvantages: Repels water and is not very sustainable.


Clothes made from linen have been known to provide remarkable coolness and freshness, particularly during very hot and humid conditions.

Advantages: Highly absorbent, breathable, quick-drying and durable.

Disadvantages: Due to its absorbent nature, it retains sweat. It’s also not stretchable, and is wrinkle-prone - making it tough for everyday use.

Sweatshield Undershirts are made from the industry’s gold standard for sweat proof fabrics i.e: modal and micro modal fabrics.

They are favored for being luxuriously soft, lightweight, and 100% more durable against multiple washes, compared to cotton.

The design stays tucked in, meaning no tags, no bunching, and a crisp looking outer shirt finish.

Design and Fit

The design and fit of an undershirt determine what level of protection it will provide. The consumer should consider two things:

  • The undershirt shape (cut)
  • The undershirt length

Luckily technology keeps evolving and so do sweat-proof shirt companies. Most brands feature slim-fit models as part of their product offering.

People prefer undershirts with contoured, seamless fits. The goal being invisibility on the outer layers of clothing.

Extra length is another key component of the undershirt’s fit potential. Longer undershirts mean they stay tucked in no matter what activity the person does all day.

The right fit also means that the protective layers stay exactly where they are supposed to be, e.g., the back or armpits. 


It’s important to find the right size undershirt, depending on a consumer’s daily functions.

People mainly wear undershirts for sweat protection. Therefore, protective layers need to stay on the areas that need the most coverage.

Choosing the right undershirt also largely depends on personal style. To make the decision easier a consumer can ask themselves these questions:

  • What types of clothes do I wear every day?
  • What is my office dress code?
  • On which occasions will I need a sweat-proof undershirt the most?
  • Do I like form-fitting or loose-fitting undershirts?
  • What’s my body size and frame type?

Most sweat-proof undershirts have enough flexibility to fit all body frames imaginable under the sun.

All undershirts guarantee consumers 100% underarm sweat blockage. But for maximum overall protection, consumers may need to look into sizing upwards.

Most sweat proof underarm panels will be designed and scaled to size, but larger sizes may have more room and thus, more protection.

Consult the provider’s sizing guide to get your perfect fit.

Color and Cut Preferences

The outer colors you wear also determine what kind of undershirts you need.

One of the key selling points for most sweat-proof undershirts is invisibility, or something close to it.

The days of the standard shockingly white visible crew neck undershirts are behind consumers. Most brands today offer different colors and neckline designs.

White undershirts don’t hold up well against lighter colored clothes or shirts.

Sweatshield’s Men’s Sweat Proof Undershirts, for example, are available in three versatile colors to suit every occasion: black, white and beige.

Sweat-proof undershirt providers today offer variations like deep v-necks, crewnecks, scoop necks, and standard v-necks.

Each of the above styles has a place in a savvy consumer’s closet. Here are a few reasons:

  • Crew necks do well underneath dress shirts with ties.
  • Scoop necks are ideal for layering as well as casual, dressed-down days.
  • V-necks are great for an informal “two buttons undone” look.
  • Deep v-necks are perfect for people who want to wear v-neck sweaters or unbuttoned shirts.

The Overall Sweat Proof Performance

You can’t entirely judge a sweat proof undershirt’s performance based on reading the product’s descriptions alone.

Some brands rise to the challenge and invite consumers to put their products to the test.

Sweatshield clients, for instance, have the freedom to return their used undershirt for a 150% refund within 30 days of the purchase. Customers can return one used item, and as many as five unused items.

Before purchasing a product, browse through reviews written by real customers,  and look beyond the brand website.

Real reviews can also be found on e-commerce platforms selling the brand’s products.

Read blogs and open forums where happy or unhappy customers discuss real experiences with sweat-proof undershirt providers.

Such measures help you to understand what challenges they may encounter with a potential undershirt. It also gives the consumer an idea about a company’s ethos and values.

Observe how each company handles customer complaints. The manner in which brands treat negative feedback is sometimes more important than how they share success stories.

Brand research is necessary. But consumers need to remember that everyone approaches products based on their own unique experiences.

Note, however, that people do not sweat the same, and some experiences may not resonate.

Take Control of Sweat

Dealing with the awkwardness of sweat in the workplace or any other social situation can cause a world of anxiety. For more help, here's our complete guide to excessive sweating.

But there’s no need to pack a few extra shirts for the day anymore.

Our sweat proof undershirts have been transforming lives for decades.

Backed by a decade of research, our undershirts have the right qualities for your needs including:

  • An impassable underarm barrier
  • Our revolutionary keep-cool technology, guaranteeing you full temperature and moisture control throughout the day
  • Complete freedom from stains and sweats associated with sweat
  • The  luxurious micro modal fabric that feels and wears like a second skin
  • A stay-tucked design that has you looking absolutely professional.

Navigate your daily life with the ease and comfort provided by SweatShield Undershirts.

Photo: Freepik