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Review summary

Created with AI, based on recent reviews

Considering 49 reviews, reviewers had a great experience with this company. Customers consistently praise the product, highlighting its exceptional quality, comfort, and durability. Many people appreciate how well the undershirts fit, stay tucked in, and effectively wick away sweat, making them ideal for various climates and as an invisible layer under dress shirts. Reviewers frequently mention that these undershirts are the best they have ever owned, often replacing their entire wardrobe with them due to their long-lasting nature and superior feel. However, some people were dissatisfied with the customer service, reporting difficulties in receiving responses to their inquiries about returns, order issues, or quality concerns, and noting a lack of accessible contact numbers. A few other people also felt that the product material was too thin, felt synthetic, or did not adequately resist odors, and some experienced issues with sizing or seams separating after initial use.

What people talk about most

Product

Clients share positive opinions on product, with many reviewers praising the exceptional quality, comfort,... See more

Quality

Reviewers highlight positive aspects of quality, with many praising the perfect fit and exceptional quality... See more

Customer service

Users describe ambiguous interactions with customer service, with some reviewers praising the excellent... See more

Order

Reviewers mention ambiguous feedback about order, with some expressing satisfaction and plans for future... See more

Customer communications

Customers express significant dissatisfaction with the contact process, frequently reporting a lack of... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Updated review: I did not love the undershirts. They fit and they are as advertised, but too thin for my taste. Also I’m used to cotton and this feels very differently. It’s not for everyone. I... See more

Company replied

Rated 4 out of 5 stars

I love the spec on the garment as you don't see it when you wear a shirt with first button unbuttoned. but the fabric is not good lot of my older shirts have the tencel or the modal burning out from... See more

Rated 4 out of 5 stars

Customer service informed me of what size undershirt they recommended me to order. This gave me more confidence in buying their product. The undershirts did not clear customs in New Zealand... See more

Company replied

Rated 5 out of 5 stars

These undershirts are above and beyond the best I've worn. They don't shrink or lose shape, they help wick away sweat more easily than cotton, and they always stay tucked in. The only thing you'd need... See more


Company details

  1. Men's Clothing Store
  2. Clothing Store

Written by the company

UnderFit undershirts are cut longer and lightly hug your hips and below, to stay tucked in all day. Our fabric is ideal for undershirts due to its exceptional softness, advanced moisture absorption, odor resistance and superb breathability. If you want to remain less comfortable in your run-of-the-mill undershirt, by all means, DON’T buy an UnderFit.


Contact info

4.2

Great

TrustScore 4 out of 5

382 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 33% of negative reviews

Typically replies within 2 weeks

How this company uses Trustpilot

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Rated 5 out of 5 stars

So far great!

I've had for several days. I'm headed to the boundary waters soon and I decided to test this shirt out for temperature and stink control. After 3 days of heavy sweating , no showering, the shirt still did not smell bad. I'm genuinely impressed. It fit well and never came untucked. So far so good! Only things is, find a Us manufacturer or post more about manufacturing ethically.

22 August 2024
Rated 5 out of 5 stars

Best T’s ever!

Love these T-shirts. Aside from being super comfortable, The fit and fabric are amazing. Love how they hug your body but are not tight. Makes trucking in with your shirt so much easier and less extra fabric bunching around the pant waist. Perfect for folks that still wear suits and dress clothes for work!!

16 June 2024
Rated 5 out of 5 stars

The best out there...period!

I tried several t-shirts for wear to work and this is the best I've found. It's a fitted shirt that stays tucked in throughout the day and is extremely comfortable. I purchased 5 without trying it first and have zero regrets and will also purchase more in the future. I'm 5'9" and 180 with an athletic build and the large fits me perfectly.

13 August 2023
Rated 5 out of 5 stars

I love tshirt

The fabric is spectacular, the fit is perfect, I would have liked it a little shorter in length, but it's nothing I can't handle. I have been using UndrerFit for more than 5 years...

10 October 2023
Rated 5 out of 5 stars

Best T-shirt Ever

I have been looking for new undershirts, more comfortable, less baggy, etc....After a good amount of research, I decided to try UnderFit. I am so impressed, they are comfortable, soft, cool, basically everything I was hoping. I cannot speak to how long they last but, so far, I love them!!!

10 August 2024
Rated 5 out of 5 stars

Exactly what I’ve been looking for

The length for my tall size was not wrong. It was long enough for a tall person AND it was long enough to stay tucked in forever. The Vneck is low and wide enough not to show which is what the primary functional purpose of an undershirt is. The material is thin, but that is a plus because it is light and doesn't interfere with your clothing. Also, the stretch material is not constricting. Fantastic.

16 April 2024
Unprompted review
Rated 5 out of 5 stars

Worked Out Well

I found this website on a whim while searching for an undershirt, and I decided to try one, and it worked out quite well. I will continue to use it as an undershirt for dress shirts. Shirt fit well, was invisible, and prevented me from sweating through my shirt on a hot summer day.

5 November 2023
Rated 5 out of 5 stars

They're Excellent

I'm always leery about ordering clothes online, but these shirts have passed my strict requirements and are extremely good in every way. I bought 3 beige, and I will likely follow up with another 3 white. So far, they are living up to their claims.

5 November 2023
Rated 5 out of 5 stars

Great quality

I buy for boyfriend and his response after getting the first one was "this is the best undershirt I've ever worn". I bought 3 more :)

5 December 2023
Rated 5 out of 5 stars

Game-changer

I love the beige underfit shirt! Best part is how invisible they are underneath white shirts. Also, the length on them is perfect to stay tucked in if needed. I got 7 and wear them every day now.

4 November 2023
Rated 5 out of 5 stars

Great quality

My boyfriend won’t wear any other t-shirts. These are soft, and fit so well. He likes how they also stay tucked in.

1 July 2024
Unprompted review
Rated 1 out of 5 stars

The return policy is fraudulent

The return policy is fraudulent, they simply don't respond to your request. And the shirts kinda suck any way. Don't waste your time or money.

1 May 2024
Unprompted review
UnderFit logo

Reply from UnderFit

Hi Mike, this is Leigh — I’m the owner of UnderFit.

I know this response is long overdue, but I still wanted to reach out and take responsibility for the experience you had. If your return request went unanswered, that’s completely on me.

Since then, I’ve made real changes to make sure this doesn’t happen again. Support is now something I take much more seriously — every message gets seen and answered.

If there’s any chance I can make this right, I’d be grateful for the opportunity. You can reach me directly at leigh@underfit.com.

– Leigh
Owner, UnderFit.com

Rated 5 out of 5 stars

Material feels nice on skin

Material feels nice on skin. Product works as advertised, really helps to deal with heat when wearing a full suit and is very thin so does not interfere with other layers. V neck can't be seen with a regular t shirt but prevents armpit sweat being visible which is good.

30 June 2023
Unprompted review
Rated 4 out of 5 stars

UPDATED: Great product and made things right

UPDATE: Leigh contacted me and made my order right by shipping my shirts as promised per his comments below. The shirts are breathable, great and don't smell like polyester tends to. Changing my review to 4/5 stars. 5 for the product but I can't ignore the 8 month wait entirely.

ORIGINAL REVIEW:
I ordered 12/15/23. My card was charged and I got an order number in a confirmation email. It’s 2/17/24 and no progress. I’ve tried emailing support several times and using their web form also. No response. I think this place is going out of business.

15 February 2024
Unprompted review
UnderFit logo

Reply from UnderFit

Hey Bryan,

Thank you giving us the chance to make things right.

I’m glad you’re enjoying the shirts and appreciate your understanding. I apologize again for the delay, and I’m committed to ensuring this doesn’t happen in the future.

Rated 1 out of 5 stars

Order never processed won’t give refund

I placed an order in mid November of 2023. I followed up after a couple of weeks as I never received shipping info. Leigh responded and said that the order didn’t process because the website let me place an order for an out of stock item. No problem I responded and said I would modify my order to something in stock. Since that I have reached out multiple times via email and through the website. It’s been radio silent since November 27th. At this point I just want my money back.

12 November 2023
Unprompted review
UnderFit logo

Reply from UnderFit

Hi Quinn,

I sincerely apologize for the situation you experienced—this is entirely my fault. I take full responsibility for the communication breakdown and regret that it led to such frustration.

I’ve followed up with you via email to make up for this situation and would love the chance to make things right. Please feel free to reply directly, and I’ll ensure your concerns are addressed.

Again, I’m truly sorry for the trouble. We've taken steps to ensure this doesn’t happen again.

Best regards,
Leigh

Rated 1 out of 5 stars

Never received order, no customer service response

I ordered a shirt on Sept. 5, 2023, received a confirmation email from Underfit and my credit card was charged. It's now been exactly one month and my shirt has not arrived and when I check my order status on their website it say, "on hold". I've emailed them twice via their customer service contact and have yet to receive a response.

5 September 2023
Unprompted review
UnderFit logo

Reply from UnderFit

Hi Lance, this is Leigh — I’m the owner of UnderFit.

I know this reply is way overdue, but I still wanted to acknowledge what happened. Your order was stuck, and your messages went unanswered. That’s completely my fault.

Around that time, we had issues with fulfillment and customer support — and unfortunately, your order got caught in the middle of it. I’ve since made changes to fix both. Orders now ship fast, and I have a dedicated support team member.

If there’s any way I can make this right for you, I’d really appreciate the chance. You can reach me directly at leigh@underfit.com.

– Leigh
Owner, UnderFit.com

Rated 1 out of 5 stars

NO Product and NO Customer Service

I placed an order 8/28. Still shows "being processed" when I paid for 2-4 day shipping. Now at day 10. I've sent multiple emails to customer service and no response. I reached out via their social media. No response. I guess I got scammed???

8 September 2023
Unprompted review
UnderFit logo

Reply from UnderFit

Hi there, this is Leigh — I’m the owner of UnderFit.

I know this response is long overdue, but I want to acknowledge your frustration and take full responsibility. Your order was delayed, your messages went unanswered, and that’s not acceptable.

Since then, I’ve made major changes to fix this — orders now ship on time, and every message gets a response.

If you’re open to it, I’d really appreciate the chance to make this right. You can reach me directly at leigh@underfit.com.

– Leigh
Owner, UnderFit.com

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