Moves like gym gear. Feels like a favorite tee.
Built on a sport silhouette, worn everywhere else. The Core Sport Brief cuts the leg high to free the thigh — full mobility, clean profile — in 100% cotton that keeps it comfortable long afte...
Reviews
4.7
65 ratings
5
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big
I think the company changed the fit models because the size is larger than the previous underwear I've ordered.
J
John · July 13, 2026
Love them!
The fit is perfect. I was between sizes and chose to go up a size for the larger pouch, as recommended by the C-IN2 support team. The pouch has enough room but still provides support. They are soft as butter and seem like they will last for years. The cut and style complement the body and make you look great. These (and the Grey Core Sport Briefs) are my new favorites. I purchased 28 pairs, so yeah, I'm addicted.
E
Eric · May 7, 2026
Its design is a combination between their low rise and dash brief so it may not work for everyone. Nonetheless, it is quite comfortable and fits well like any of their briefs.