Cold War era military chemical suit, army drab jacket and pants, 70s vintage

Vintage US army drab jacket and pants chemical protective suit from the 1970s. These are in nice condition and it has velcro closers on the pockets and leg zippers.

The jacket is labeled as a size small. It measures 27" long (base of collar to hem), 42" around the chest (under the arms), 20" across the shoulders (at the back) and 21" sleeves from armpit to cuff.

The pants are marked as x-small and they measure 34" around the waist and 30" inseam.