One size: 22-22.8 "/56-58cm (adjustable), which can be adjusted by buttons and can be adjusted according to different head sizes. Material: Rhinestones baseball caps is made of Cotton, soft and elastic, very skin-friendly and comfortable, light and practical, it will provide you with a comfortable feeling. Sparkling Design: This sun hat is adorned with fashion rhinestones, sparkling in the sun, making you more charming and attractive. Great Gift: Bling hat is also an ideal gift for friends, mothers, colleagues in summer Occasion: Very suitable for golf, beach, tennis, picnics, hiking, walking, shopping, climbing, camping, traveling and other outdoor activities.