---
product_id: 725274953
title: "Men's Sweatproof Undershirt | Cotton Crew Neck T-Shirt with Underarm Sweat Pads, Original Fit | Aluminum-Free Alternative"
brand: "thompson tee"
price: "¥38757"
currency: JPY
in_stock: true
reviews_count: 5
category: "T Thompson Tee"
url: https://www.desertcart.jp/products/725274953-mens-sweatproof-undershirt-cotton-crew-neck-t-shirt-with-underarm
store_origin: JP
region: Japan
---

# Lightweight, breathable 100% premium cotton 100% patented Hydro-Shield sweatproof tech Designed & made with care in the USA Men's Sweatproof Undershirt | Cotton Crew Neck T-Shirt with Underarm Sweat Pads, Original Fit | Aluminum-Free Alternative

**Brand:** thompson tee
**Price:** ¥38757
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay dry, stay sharp—wear confidence beneath every outfit!

## Quick Answers

- **What is this?** Men's Sweatproof Undershirt | Cotton Crew Neck T-Shirt with Underarm Sweat Pads, Original Fit | Aluminum-Free Alternative by thompson tee
- **How much does it cost?** ¥38757 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/725274953-mens-sweatproof-undershirt-cotton-crew-neck-t-shirt-with-underarm)

## Best For

- thompson tee enthusiasts

## Why This Product

- Trusted thompson tee brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Easy Care:** Machine washable and dryer safe—retains sweatproof effectiveness wash after wash.
- • **Discreet & Stylish Underlayer:** Original crew neck design with tagless, lay-flat collar ensures seamless wear under any dress shirt.
- • **Ethically Made, Aluminum-Free:** Aluminum-free alternative designed in the USA with fair labor standards, perfect for sensitive skin.
- • **Sweatproof Confidence All Day:** Patented Hydro-Shield pads block 100% underarm sweat—no more embarrassing stains or odors.
- • **Premium Comfort Meets Performance:** Crafted from breathable, soft combed cotton for a lightweight, all-day comfortable fit.

## Overview

The Thompson Tee Men's Sweatproof Undershirt features patented Hydro-Shield technology that blocks 100% of underarm sweat with integrated moisture-wicking pads. Made from 100% premium combed cotton, this lightweight, breathable crew neck undershirt offers discreet sweat and odor protection without aluminum-based chemicals. Designed and manufactured with ethical standards in the USA, it’s machine washable and built to maintain performance over time, empowering professionals to stay fresh and confident in any high-stakes situation.

## Description

As Seen On Shark Tank! Our shirts have been featured on a number of shows and in various articles including 'Shark Tank' 'The Today Show' 'The Doctor's' 'ABC News' 'Huffington Post' 'SHAPE Magazine' and 'CNBC'! Over the years, we have worked tirelessly to develop the perfect anti-sweat undershirt. Thompson Tee Technology: We poured years of hard work (and lots of armpit sweat) into perfecting our sweatproof shirt, the only sweat-proof undershirt to earn a U.S. patent for our Hydro-Shield sweatproof technology. The Thompson Tee with Hydro-Shield Sweatproof Technology blocks 100% of underarm sweat, preventing embarrassing wet marks and yellow stains. Our shirts will protect and extend the life of your dress shirts. The Thompson Tee combines the best features of an undershirt with our newly designed fully integrated underarm pads to form our proprietary sweat-proof technology and guarantee peace of mind in any situation! About Thompson Tee: At Thompson Tee, we provide freedom, comfort, and confidence to customers in more than 135 countries! We are committed to delivering products that are made in the USA and do not harm the Earth. The fully integrated underarm sweat pads provide a sleek and consistent look and feel. Every Thompson Tee sweat proof undershirt comes with a Sweat Proof Guarantee. We guarantee your underarm sweat will not penetrate our underarm sweat pads! We accept returns on all opened or used sweat proof shirts for up to 30 days from purchase, risk free. 250,000+ satisfied customers from over 135 countries around the world are enjoying our patented sweat proof undershirts with our newly designed integrated underarm sweat pads!

Review: A little expensive but great product! - Works great! No more embarrassing sweaty armpits at work and the pads are discreet enough that you can’t see them bulging out under the dress shirt. The product is a little expensive, but works great!
Review: Game changing! - I bought already 5 of these T-shirts. They get delivered fast and the product is very efficient in retaining sweat and avoiding embarrassing wet marks under the armpit. I personally prefer the crew neck and original fit as the slim fit is made of different material and I found it a little more warm. It take a while to dry after washing due to the pads under the arm but with couple of them in the stock I sort out the issue quickly. Overall I am very satisfied with this product and I also recommend it to friends and family. I will definitely buy it again if needed

## Features

- The Original Premium Sweatproof Undershirt For Men: The Thompson Tee sweatproof men's undershirt was the first of its kind on the market to address the embarrassing topic of sweat with a safe, affordable, and convenient solution; With over 2 million lightweight, breathable, comfortable t-shirts sold, we continue to be the leader in reducing the stigma of sweat and helping our customers feel comfortable in their own skin, every day
- Patented Sweatproof Technology: Our men's undershirts are made with the state-of-the-art Hydro-Shield sweatproof technology featuring the only patented, clinical-grade sweat proof material; the proprietary moisture-wicking undershirt sweat pads pulls sweat away from your skin, preventing it from seeping onto your shirt and keeping you cool and dry throughout the day; perfect for important or stressful events such as weddings, interviews, presentations, first dates, and more
- Versatile Sweat & Odor Defense T-Shirt: Our stylish men's crew neck undershirt complements any outfit while discreetly keeping sweat and body odor at bay, giving you the confidence to wear any dress shirt without fear of sweat marks; these original fit undershirts are made from 100% premium combed cotton (Heather Grey 90/10 cotton/poly) exclusive of the underarm pads inner layer; tagless with a lay-flat collar for a seamless fit
- Block Sweat Stains & Stay Confident: In every innovative men's sweatproof undershirt we offer, our patented sweat pads stop all armpit sweat; these premium undershirts are machine washer and dryer safe and won't lose effectiveness over time, so feel free to wear, wash, dry, & repeat
- Designed In The USA & Manufactured With Care: Thompson Tee sweatproof undershirts are designed in the USA and manufactured in American and global facilities that uphold the highest fair labor standards; our premium undershirts are never chemically treated and are great for those with sensitive skin as an aluminum-free and prescription antiperspirant alternative

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01AMUSOI2 |
| Age Range Description | Adult |
| Apparel Closure Type | Pull On |
| Apparel Fabric Stretch | No Stretch |
| Apparel Fabric Weight Class | Medium Weight |
| Apparel Occasion and Lifestyle | Comfort |
| Back Style | T Back |
| Best Sellers Rank | #1,004,305 in Clothing & Accessories ( See Top 100 in Clothing & Accessories ) #50,529 in Men's T-Shirts |
| Brand Name | THOMPSON TEE |
| Collar Style | Crewneck |
| Colour | Black |
| Country Of Origin | USA |
| Cuff Style | No Cuff |
| Customer Reviews | 4.5 out of 5 stars 3,499 Reviews |
| Fabric Stretchability | Non-stretchable |
| Fabric Type | 100% Cotton |
| Fit to Size Sentiment | Neutral |
| Fitting type | Regular Fit |
| Garment Size Country | United States |
| Hemline Form | Straight |
| Import Designation | Made in USA and Imported |
| Is Customisable? | No |
| Item Length Description | Standard Length |
| Item Type Name | Undershirt |
| Manufacturer | Thompson Tee |
| Manufacturer Part Number | 1020-0000 |
| Material type | Cotton |
| Model Name | 1020-0000 |
| Neck Style | Crew Neck |
| Occasion description | Vacation |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Season | All |
| Shirt Form Type | T-Shirt |
| Sleeve Type | Short Sleeve |
| Sport Type | Walking |
| Style Name | Crew Neck |
| Style Number | 1020-0000 |
| UPC | 810041580245 |
| Unit Count | 1 Count |
| character | sports |
| number-of-items | 1 |
| top-style | undershirt |

## Images

![Men's Sweatproof Undershirt | Cotton Crew Neck T-Shirt with Underarm Sweat Pads, Original Fit | Aluminum-Free Alternative - Image 1](https://m.media-amazon.com/images/I/616+fIO4CLL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Do Thompson Tee undershirts actually block underarm sweat?**
A: Yes. Thompson Tee undershirts have patented Hydro-Shield pads built into the underarms to absorb and block sweat before it reaches outer clothing, helping prevent visible sweat marks and pit stains. The protection is designed for repeated washing.

**Q: Does Thompson Tee help with body odor?**
A: Yes. Hydro-Shield helps block underarm sweat and body odor from transferring to your outer layers, helping keep your clothes protected from both visible sweat marks and odor transfer.

**Q: Do the built-in sweat shields feel bulky?**
A: Thompson Tee's tailored sweat shield design and underarm seam help the structured material fold naturally with your arm, reducing bunching under clothing while keeping protection where you need it.

**Q: Does Thompson Tee's patented Hydro-Shield sweat protection wash out?**
A: No. Thompson Tee's patented Hydro-Shield technology features permanently built-in underarm sweat pads that absorb and block sweat wash after wash. The protection is designed to last—no disposable pads, inserts or replacements required.

**Q: What's the difference between Original Fit and Slim Fit?**
A: Original fit offers a classic, relaxed undershirt fit in soft cotton. Slim fit sits closer to the body and uses a soft, breathable rayon blend with stretch for smooth, discreet layering. Both feature Hydro-Shield sweat and odor transfer protection.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A little expensive but great product!
*by M***S on 17 November 2018*

Works great! No more embarrassing sweaty armpits at work and the pads are discreet enough that you can’t see them bulging out under the dress shirt. The product is a little expensive, but works great!

### ⭐⭐⭐⭐⭐ Game changing!
*by R***Y on 17 December 2019*

I bought already 5 of these T-shirts. They get delivered fast and the product is very efficient in retaining sweat and avoiding embarrassing wet marks under the armpit. I personally prefer the crew neck and original fit as the slim fit is made of different material and I found it a little more warm. It take a while to dry after washing due to the pads under the arm but with couple of them in the stock I sort out the issue quickly. Overall I am very satisfied with this product and I also recommend it to friends and family. I will definitely buy it again if needed

### ⭐⭐⭐⭐⭐ Amazing. Works better than expected
*by A***R on 7 March 2018*

Wow. Was skeptical at first considering how many dress shirts I've ruined with sweat or how many times I'd have to change halfway through the day. How could a t-shirt fix all of that? Well, this shirt did. I can wear colors again! Who knew! This shirt works better than expected. Much better. I'm a student and wore this shirt under a light grey dress shirt the other day when I had an exam and interview within 20 minutes of each other, so you can imagine how stressed (and therefore sweaty) I was. To my surprise, not a single droplet of sweat showing under my arms. Safe to say I love this new shirt. Not only am I saving dress shirts and am able to wear new colors I'd never dare wear before, my confidence has been boosted considerably since I'm no longer worried about the embarrassing underarm sweat marks. It does fit a tad big. I'm normally an XL, however, a large in this shirt fits me perfectly. Not too tight that its restrictive or uncomfortable, but not too big and baggy that it's not a good undershirt or that the sleeves bunch or ride up. I'd recommend getting one size smaller than you'd get in a normal t-shirt (you want it to be relatively snug). There are some things to be aware of though. The armpits are padded to absorb sweat, so at first, it may feel like you've got a small towel stuffed under your armpits. I got used to that after wearing it only one time - it's no longer noticeable and feels just like a normal shirt. Since it absorbs the sweat in the armpit pad, I expected that it would also start to smell by the end of the day. Nope! While the pads do absorb sweat (and get wet) there are absolutely no bad orders that get trapped in the material. I would recommend getting more than one or washing after each use, however, since by the end of the day the armpits are very wet on the inside of the shirt and take a while to dry. The last thing you wanna do is put on the shirt again the next day and have wet armpits. Yes, its expensive for a t-shirt, and hopefully in the future, the company is able to reduce their costs as they grow and are able to offer these shirts at a more affordable price, however, I still think it's 100% worth it. I'm going to be buying 2 or 3 more in the next couple days since I love it so much and it works so well. BUY THIS SHIRT! That's all I've gotta say.

## Frequently Bought Together

- Men's Sweatproof Undershirt | Cotton Crew Neck | Original Fit | with Sweat Pads
- Men's Sweatproof Undershirt | Slim Fit V Neck T-Shirt with Underarm Sweat Pads | Aluminum-Free Alternative
- Ejis Sweatproof Undershirt for Men | V-Neck Cotton | Classic Fit T Shirt with Sweat Pads | Odor Resistant | Blocks Sweat

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-13*