Standard US men's size.
This crew neck long sleeves is made from Ultra soft fabric. It is lightweight, breathable,  medium stretch and very comfortable.  A perfect pickleball apparel under the hot sun.  "One More Game" (OMG) is printed on the front to describe the addiction of all pickleball players. At the back it is an AI assisted "Bright Nation" design. It has blue and grey in all sizes.  White is only available in certain sizes.  Women love the material and just cut it short sometimes.