incredible art here folks ! From the circa 1995 t-shirts with stenciled " G'mule ,music for your ass to this ! From 3 Mules to 4 , its a fitting evolution of the band , its music & the color it brings to the experience . i refer to it as the 4 mule dose symbol. for me , its esoteric ; (reserved for the understanding few ) I wear it with personal pride . peace folks .