Personalized What If It's the Best Summer Yet? Baby Sweatshirt. Make every summer the "best summer" with What If It's the Best Summer Yet? Baby Sweatshirt - Heather, featuring Jonathan James from "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. Keep your little one warm and comfortable with this soft infant crew fleece sweatshirt. Made from a cozy cotton poly blend, this pullover offers just the right amount of warmth for cooler days without feeling bulky. The snap-tape neck closure makes dressing quick and easy, and the ribbed collar, cuffs, and hem provide a secure fit that moves with your baby. Durable stitching and side-seam construction help the sweatshirt maintain its shape and softness through repeated washing. Great for everyday wear, daycare, playtime, or layering during fall and winter, this fleece sweatshirt is a practical and comfortable essential for any baby wardrobe.