EILEEN FISHER CREWNECK LONG SHELL TANK, WHITE, NWT.  This Eileen Fisher Crewneck Long Shell Tank, in the color White, is brand new with the tag attached.  The product description is:

A longer length brings wardrobe-spanning versatility to an essential crewneck tank cut from silky jersey knit from sustainably produced TencelĀ® lyocell.

Size XS:  The measurements laying flat on the floor are:  chest - 17.5 inches and shoulder to bottom hem - 26.5 inches.
Size Small:  The measurements laying flat on the floor are:  chest - 18.5 inches and shoulder to bottom hem - 27.5 inches.