Boys' Sharks 7 Pack Cotton Boxer Briefs. The 7-Pack Boxer Briefs ensure he stays comfy no matter what his day brings. Crafted from 100% cotton, these boys' boxer briefs feel soft against his skin and provide him round-the-clock comfort in all his daily pursuits. Designed in a comfortable mid-rise cut, this boxer briefs pack includes seven pairs — four in solid hues with contrasting waistbands, while the other three feature cool shark prints — to fill his essentials drawer with fun colors and patterns while ensuring he has a fresh pair on hand for each day of the week. Boys' Sizes. Sits Perfectly at the Hips and Offers Full Coverage. Durable Fabric Construction that Withstands Wash After Wash.