Build your ALPHX Modern Fit bundle and save up to 25%. Premium underwear designed for slim to average thighs with a clean, tailored feel.
Build Your Modern Fit Bundle
Premium underwear designed for slim to average thighs.
Build your bundle. Save more. Choose your fit.
Build Your Bundle in Seconds
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Choose Your Bundle
Pick any 3 (save 20%) or any 5 (save 25%)
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Mix or Match
Boxer briefs, trunks, briefs, or union pants
Any colors. Any combo. -
Instant Savings
Discount applies automatically at checkout
Why Choose Modern Fit?
- Designed for slim to average thighs
- A tailored silhouette with clean lines and zero excess fabric
- No bunching
- No riding up
- Premium support and all-day comfort
- Soft breathable fabric
- Contour pouch support
- Clean modern profile
- Built for everyday wear
Not sure if Modern Fit is right for you?
Take the Fit Quiz or explore Fit Authority below.
Available in Your Bundle
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Boxer Briefs
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Trunks
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Briefs
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Union Pants
Mix styles or stay with one. Your bundle, your way.

Build Your Bundle Now
Bundle 3 for 20% or 5 for 25%
Your fit. Your colors. Your comfort.

