This is a great cap for cold weather and its super comfortable. Designed to resemble the Goorin Bros Ribknit Military cap, this smaller version is just as cool. The Acrylic knit cap is warm and it will stretch for a comfortable fit. Each side of the cap has a pair of nickle mesh grommets for ventilation. The 3 1/2" high square cap has a 1 1/2" wide bill/visor. Curve the bill/visor for a better fit. Available colors: Black, Pink and Olive. Available sizes: Small/Medium (2-4 years) and Medium/Large (4-6 years).