Buck Mason Surplus Rib Tank - black, small Slim fit, vintage military-inspired tank cut from 295 GSM stretch cotton that holds its shape. 2x2 rib structure—two rows of rib stitch, two rows of jersey stitch—is offset by contrast 1x1 ribbing at the neck. Features a hidden thread chain and snap at each shoulder to hold bra straps in place. Constructed with flatlock stitching throughout and double needle coverstitching at the hem. Garment washed for a lived-in feel.