My solid color baby hats are made from 100% soft organic cotton knit. The fabric is a medium-weight knit with a nice amount of stretch for comfort, your child will love the warmth & softness of this hat. Seams are professionally sewn for finish & durability. Label & Care instructions are sewn under the cuff. Knot Hat Infant - 3 months, relaxed fit 14 gentle stretch to 16 3 month - 6 months, relaxed fit 15 1/2 gentle stretch to 17 1/2 6 month - 9 month, relaxed fit 17 gentle stretch to 19 9 month - 12 months, relaxed fit 17 1/2 gentle stretch to 19 1/2 Additional Knot Hats can be found here: https://www.etsy.com/shop/lilybeangiggles?ref=seller-platform-mcnavion_id=17278435 Care Instructions: Machine wash with cool water on a delicate cycle. Do not bleach. Use phosphate-free detergent to prevent fading. Wash with like colors. No fabric softener. For best results (to prevent fading) air dry. Iron to remove wrinkles. http://www.caitlinclairestudio.com/ Baby Hat, Organic Knot Knotted Solid Color Cotton Newborn Hat