Note: Psycho Bunny sizes their garments one down from UK, however, please choose your normal size. 
Our available options are UK sizes:

	XXS	XS	S	M	L	XL	XXL	XXXL
Psycho Bunny	1	2	3	4	5	6	7	8
Chest	18.5"	19.5"	20.5"	21.5"	22.5"	23.5"	24.5"	25.5"
Length	27.5"	28"	28.5"	29"	30"	31"	32"	33"

To determine your ideal size:

1. Take a polo shirt from your wardrobe that fits you comfortably and lay it flat on a firm surface.
2. Measure the width of the polo shirt from the armpit to armpit. 
3. Refer to the sizing chart above to identify the appropriate size for your purchase.