Vintage Bike Cycling Jersey Size Medium American Esoteric Laboratories AEL Zips. Cool and unique cycling jersey. Size medium. 100 percent recycled polyester. Men's Club Cut. Nimblewear.com. White, Blue and Red and says American Esoteric Laboratories AEL on the back. Full Zipper in front, three elastic pockets on bottom of back. Great condition from a pet free smoke free home. I took measurements lying flat and these are the approximate numbers: Bottom of jersey: 16 inches (this is with the elastic not stretched) Armpit to armpit: 21 inches Length from top of back of neck to bottom seam: 26.5 inches