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First-Order Fit Check
We want you to love your UnderFit undershirts. For first-time orders, please:
Our 100-Day Guarantee
We stand behind our quality. All UnderFit undershirts come with a 100-day satisfaction guarantee (US customers). Even if you’ve worn or washed your shirt, we’ll make it right.
Here’s the process to return an item:
Need a different size or style? We provide FREE shipping both ways on exchanges for US customers. We’ll follow the same process as returns to get you the perfect fit.
If you receive a defective product, contact us at service@underfit.com within three weeks for a full refund or exchange. While we maintain rigorous quality standards, occasional imperfections can occur in garment manufacturing. We’ll make it right.
Refunds are typically processed within 2 business days of receiving your return. Please allow 5-7 business days for the credit to appear on your statement.
Please note that we cannot provide free return shipping or exchanges for international orders at this time. Contact us at service@underfit.com for assistance with international returns.