|Hanes Mens Big Boxer Briefs 4 Pack - Assorted 2349C4B fiber content is 100% Cotton; Heathers: 75% Cotton/25% Polyester. Hanes Mens Big Boxer Briefs 4 Pack - Assorted The support of briefs. The freedom of boxers. You really can have it all. Soft, stretchable Comfort Flex waistband moves with you and keeps its shape wash after wash. Ultra-soft cotton knit is preshrunk for a lasting fit. Long-leg style. Functional fly.. Hanes Mens 2349C4B comes with 4 Boxer Briefs per Pack.