Take your Favorite Fitting T-Shirt & lay it down on a FLAT SURFACE measure "Body Width" in inches.Example:Our Large is 22" from side to side.Refer to the diagram below.

*Our tees run a bit more fitted than average - Going up one size is common.

Note:We recommend that you go up .25 inch (1/4 of an inch) when ordering the DeFur Hats.