Vintage Long Sleeve Track Suit by ABL ARWY

Here is a super cool track suit by ABL ARWY. 65% polyester, 35% cotton, and made in Belgium. Dark blue fabric throughout. The jacket has a zippered front with a zippered pocket on the left breast. The pants have an elastic waist. Very little comes back when searching for this one, so I'm not quite sure what decade this comes from. It's medium weight, incredibly well made, and fells like it's rarely been worn. It's in amazing condition with tons of life left! The tag says 54-56 (European sizing), but here are the measurements taken laying flat (refer to the last pic above to see how I measure shirts)

Jacket:

Chest (armpit to armpit) 25" 

Shoulder to end of sleeve (including cuff) 27" 

Length 27" 

Pants:

Waist 14" (elastic stretches to about 18")

Thigh 12" 

Length 44"