Premium Softness with a hint of stretch. Adjustable knot ensures the perfect fit from newborn to four months. Lightweight fabric keeps baby comfortable in any weather. Copper Pearl's lightweight top knot hat offers a stylish way to keep tiny heads comfy and cozy in any season. The handy adjustable knot ensures the perfect fit from newborn to 4 months. Thoughtfully created with the same chic patterns and premium softness as our swaddle blankets, these caps are a must-have accessory.