The Obermeyer Boy's Springfield Knit Pom Hat is a warm and weatherproof acrylic knit hat with a polyester fleece lining. The rib knit hem adds durability and extra security and warmth around the forehead. An oversized tonal pom gives the Springfield a happy and playful look. Whether he is out sledding or going to school, rest assured his day will be joyful and full of stories.