Please compare carefully Your Measurements with the chart below to find out what size will fit you.
This is Asian Size.it's smaller than your country size . Please do check your(Waist,Bust,Height)to make sure it fits you before you purchasing it!!
WATERPROOF: Ideal for runners, golfers, tennis players, and any indoor or outdoor activities

ITEM DISCRIPTION
Material:Cotton Blend
Color: White, Black, Light Gray, Dark Gray,Blue
Hat Circuference: 56-60cm/22.04-23.62"
Height: 10cm/3.93"
Brim: 7cm/2.7"
Features: quick-drying breathe freely
Package:One Pcs hat only

• Delivery time:about 1-3 weeks
• LIGHT&COOL: By applying super light and moisture wicking fabric and massive mesh design, this cap brings you a lot of cool and comfortable.
• SIZE（Important information）: the cap brim is around 8cm in length. It can bring you more shade. The depth of this cap is 10cm(4inch)Circuference: 56-60cm/22.04-23.62",Height: 10cm/3.93",Brim: 7cm/2.7"
• BREATHABLE&FAST DRY: regular fabric can only absorb sweat, our design is more outstanding at drying sweat quickly and releasing heat . You will not feel stuffy when wear this hat.
• ADJUSTABLE: The back metal buckle is more durable than regular velcro closure. By adjustment, this cap can fit most by 20-7/8" to23" head girth. please measure your head girth before purchasing especially your head girth is bigger or smaller than normal

Delivery time:about 1-3 weeks