Simplicity 8150 vintage sewing pattern, dated 1996.

Misses', Men's or Teen Boys' Shorts, Shirt and Tie:

Boxer style shorts have elasticized waistline. Waistline may be finished with “sew through” elastic. Loose-fitting front buttoned shirt with convertible collar, optional patch pocket and back pleat has long or short sleeves. Long sleeves are pleated to buttoned cuff. Tie has shaped ends. 

Sizes    XS - S - M:

Bust  / Chest   (30 - 32 ) ( 34 - 36 ) ( 38 - 40 ) inches / ( 76 - 81 ) - ( 87 - 92 ) - ( 97 - 102 ) cm 

Pattern is UNCUT and factory folded. Envelope is in good vintage condition, with a store stamp on the front.

More 90s patterns here:

https://allthepreciousthings.com.au/collections/1990s?page=1