This Grateful Dead Guru Bear t-shirt is officially licensed and manufactured by Liquid Blue. Both sides are screen printed on a tie dye t-shirt made from 100% cotton.

Size,          Brand,        Armpit to Armpit, Top to Bottom
Medium     Liquid Blue            19.5"               29"
Large        Liquid Blue             21"                  30" 
X-Large     Liquid Blue            22.5"               31.5"
2X-Large   Liquid Blue            25"                  33"