Personalized Faux Rhinestone 21st Birthday Drawstring Bag. 21st birthday Drawstring Bag - Royal Blue with a shimmering, glittering, sparkling, silver, FAUX rhinestone number 21. Perfect for her 21st birthday! A durable and versatile cinch bag built to handle daily use. . With its lightweight design and reinforced corners, this pack is perfect for the gym, travel, or everyday activities.