CLASSIC BASEBALL HAT: This Side CK Baseball Hat by Calvin Klein is versatile and easy to pack, these hats are beach-ready, travel-ready, camping-ready, and city-ready: just choose where you're headed. CALVIN KLEIN - Authentic Calvin Klein product with logo embroidered on the front. PERFECT FIT -Features include an adjustable slider on the back with a unstructured soft crown. One size fits for most people. 100% Cotton - Made of lightweight, soft, and durable 100% cotton.