American Eagle AEO 6" Ultra Soft Boxer Briefs vs American Eagle 6" Flex Boxer Briefs

Both are 6-inch, no-fly boxer briefs with a contoured pouch and anti-roll waistband from the same brand. The Ultra Soft is the comfort pick: a modal-rich viscose blend that feels softer and drapes more than the Flex. The Flex is the performance pick: recycled polyester with spandex, sweat-wicking and antimicrobial, in a 6-panel cut that holds its shape through workouts and washes. Buy the Ultra Soft for everyday wear under jeans and chinos; buy the Flex for the gym, hot days and travel where odor and moisture matter.

• Choose the Ultra Soft if you want the softest everyday fabric and a modal blend against your skin.
• Choose the Flex if you want sweat-wicking, odor-fighting performance fabric that holds up through workouts and washes.