Core Seamless Sport Boxer Brief
Core Seamless Sport Boxer Brief
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Our Core Seamless Sport Boxer Brief features seamless construction that fits effortlessly underneath leggings.
- Details
- Materials & Care
- Shipping & Returns
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• Mid rise, full coverage.
• Soft and smooth, designed to effortlessly lie flat against your skin.
• Completely invisible under leggings and fitted bottoms. -
• Shell: 60% nylon, 40% Spandex. Lining: 100% Cotton
• Care instructions: For best results, hand wash with a light detergent in cold water. Hang or lay flat to dry away from direct sunlight. -
• Free Shipping on US orders of $50+
• For health and safety reasons, we don’t accept returns on briefsYou can review our shipping and returns policy here.
Questions? Email us!




































- BethVerified BuyerI recommend this productSize Purchased LPant Size 14Rated 5 out of 5 stars23 seconds agoBest Seamless Underwear!
I have tried a number of different brands and options for a fully seamless pair of underwear to wear under leggings, and these are by far my favorite! They're comfortable, stay in place, don't give me a wedgie like other pairs, and are fully invisible, even with thinner leggings. They also don't stretch out with wear or washing (I throw mine in the washer and line dry). Highly recommend!
For reference, I'm 5'3" and 170 pounds and the large fits perfectly!
How It FitsRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Rose G.Verified BuyerI recommend this productSize Purchased MPant Size 6Rated 5 out of 5 stars3 months agoCore seamless sport boxer briefs
Nice fit. Closest one I’ve found in all you underwear!
How It FitsRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Julie W.Verified BuyerI recommend this productSize Purchased SRated 5 out of 5 stars1 year agoSeamless Brief
I absolutely love the seamless sport boxer brief. No lines at all when I wear my Lululemon pants!
How It FitsRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeComfortRated 5.0 on a scale of 1 to 5Poor ExcellentQualityRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Mary Ann S.Verified BuyerI recommend this productSize Purchased LRated 5 out of 5 stars2 years agoAwesome
Excellent quality and fit
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentQualityRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful?