Birthday SIS

Celebrate the big day in style with our Birthday Sis Kids Tee. Designed for the birthday kid’s favorite sidekick, this black graphic tee lets sisters join in on the fun and feel part of the celebration.

Made from 100% cotton, this tee is soft, breathable, and comfortable for all-day wear—from birthday parties and family photos to cake time and playtime. The classic black color keeps the look modern and versatile, making it easy to style with any birthday outfit.

Perfect for sibling matching, coordinated birthday photos, and creating sweet memories, this Birthday Sis tee is a must-have add-on for birthday celebrations.