Designed to Fit.

Clothing designed and manufactured to fit you and 32 million other men properly. Our 100% cotton shirts are the solution to your problem.

Your FIT Matters

Find your size.

Getting your size from ill-fitting shirts is hard. We have a size guide to help you find the perfect fitting shirt. SIZE GUIDE

Our Fit Stores

We opened a Fit store in Cedarhurst, NY. Stop by our spacious, modern locations to experience our 1-on-1 service.

We're here to help!

If you have any questions or concerns, please feel free to reach out or just say hi! support@under510.com

No additional tailoring required.

After extensive research, we learned that the mass clothing manufacturers are cutting clothing around the average male height, which is 5’10.

We made shirts that require no additional tailoring so that you and 32 million other men can feel confident, comfortable and look great in.

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