· High quality fabric:90% premium cotton + 10% polyester ensures gentle touch and sweat absorption, keeping delicate skin cool and irritation-free in summer heat.· Baby baseball cap size:Newborn baseball Hat (0-6 Months/17.4"-18.2"), infant baseball Hat(6-24 Months/18.2"-19.7"),Toddler baseball Hat( 2-6T/19.7"-21.3") with adjustable hook-and-loop back for extended use.· Portable design:The toddler ball cap's three-section front brim and the breathable mesh on both sides make it easy to fit into any pocket after folding without taking up travel space.· Suitable for various scenarios: The lightweight and breathable UPF50+ fabric, as well as the mesh design on both sides of the baby hat, make it suitable for various scenarios: park, beach, hiking, boating and fishing, outdoor picnics. The Velcro on the back of the hat can be quickly adjusted to prevent slipping,even during active moments.· Washing：Gently hand wash in cool water to preserve softness and hook-and-loop adhesion. (Note: Machine wash not recommended)