YellowIbis.com: The best science t-shirts, chemistry t-shirts, nerd t-shirts, and more. 

Size	S	M	L	XL	XXL
Measure A (inch)	27.5	29.0	31.5	32.0	32.5
Measure B (inch)	17.5	20.3	21.5	24.5	26.0
Measure C (inch)	25.0	25.5	26.0	26.5	27.0

For those non-too sunny times – light, easy, chillaxed. Hanes’ loose-fitting long sleeve shirt has a medium consistency, so it’s more like a t-shirt making it perfect for layering. But it’s got those extra fabrics to face the wind, and offers some extra sun protection for those with lighter or more sensitive skin. Medium consistency of 180 g/m². 100% cotton.

Flock print (plot print with a velvety finish)

• a velvety feel, like a thin layer of plush
• extremely durable
• up to 3 different colors per design