This combo is incredibly soft and fits most kids from 2 to 9 years old. The neck warmer measures 9” x 6.5” lying flat, with a circumference of approx 18', a snug yet comfortable fit. The hat measures approx 8” x 8” lying flat, Children's hat size 6 to 6-3/4. Breathable and lightweight, the gaiter can be worn as a face mask or neck tube and is easy to put on and take off. Ensure your kids are protected against the harsh winter weather with our thermal and windproof designs.