Undershirt Bundles: More Style, More Savings.
Stay cool, dry, and comfy in our soft undershirts. With built-in underarm shields for moisture-wicking and sweat protection, they're the perfect base layer that saves your clothes and dry cleaning costs.

Your clothes will thank you
Say Goodbye to Sweat Stains
Experience all-day freshness with our sweat proof undershirts. Your new favorite base layer.
✓ Sweat-proof underarm shield wicks away sweat and moisture
✓ Sweat-proof shields keep your clothes dry and clean- no more sweat marks
✓ Made with TENCEL™ fabric for all day comfort
✓ Snug design, for a “barely there” base layer
FAQ
Sweat proof undershirts are made of contemporary cotton with a unique underarm garment to prevent sweat stains from showing on the outer clothes. Our undershirts are made with moisture-wicking fabric that absorbs sweat and keeps you feeling dry and comfortable.
Make sure to check our sizing guide on the product page, next to the sizing choices. As our undershirts fit very snug, you may want to size up for a more relaxed fit. You can also take our sizing quiz to find the best size for you. If you’re still unsure, chat with us (pressing a chat box on the bottom left part) or send us an email at customercare@wearnumi.com.
Our undershirts are a slim fit & our fabric has 4 way stretch to support the close fit. Reversible neck gives you options to the undershirt can sit low and be invisible under other clothes.
Our undershirts fit to wear discreetly so you can wear them as a base layer to protect your outer closing. It’s also perfect for layering for an ultimate all day comfort.
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