Stay quick on your feet and let your hair flow freely with this UPF50 racket sport hat featuring a wide back opening that fits a ponytail and keeps you cool and comfortable on the court NOT RECOMMENDED FOR: Swimming or situations requiring full head, neck, or Level 4 sun coverage. RECOMMENDED FOR: Golf, tennis, pickleball, and outdoor workouts. FEATURES: Designed for racket sports like tennis and padel, Lightweight Swift fabric with four-way stretch, sweat-wicking, and quick-drying properties, Interior mesh sweatband absorbs moisture to keep you dry during intense play, adjustable back closure for a custom fit DERMATOLOGIST ENDORSED: First company honored with the Skin Cancer Foundation Seal of Recommendation and trusted by top dermatologists COOLIBAR SUN PROTECTION: Leading Sun Protection Company worldwide, guarantees UPF 50+ apparel blocking 98% of UVA and UVB rays.