• Gro-With-Me®: Drawstring head adjustment & adjustable chinstrap ensure perfect fit and longer use • Water Repellent: Bionic-Finish® ECO fluorine free DWR coating on the fabric surface repels water • Superior Sun Protection: 50+ UPF aqua dry water-repellent fabric for best sun protection and comfort with wide brim strengthened to stay up in front • Stay-on: Chin-strap ensures hat stays put when windy or child pulls • Safe: Break-away safety clip on the chin-strap • Pack-able: Light weight and easily foldable to fit in a pocket for easy storage and travel Aqua-Dry Adventure Hat Sizing: • S: 0 – 6 months, head up to 45cm (17.7″) with 6.5 cm wide brim • M: 6 – 24 months, head up to 50cm (19.7″) with 7.5 cm wide brim • L: 2 – 5 years, head up to 53cm (20.9″) with 8.0 cm wide brim • XL: 5 – 12 years, head up to 56cm (22″) with 9.0 cm wide brim