Baby On Board Shirt. Perfect For Pregnant Mamma's, Baby Shower Gift. New Parents Mind The Bump! Baby on Board pregnancy tee. Tell the world there's a baby in your tum! Introducing the Comfort Colors 1717 tee: a customizable, ring-spun cotton shirt in 58 colors. Made with medium-weight fabric (6.1 oz/yd²), it offers durability with double-needle stitching and retains its shape without side seams. The relaxed fit and crew neckline make it versatile for any occasion, with pre-shrunk fabric ensuring a consistent fit. Crafted with 100% US cotton, it's ethically sourced and sustainably produced, backed by the US Cotton Trust Protocol.