You are considering a vintage Botany 500 pajama set in size Medium

55% Cotton, 45% Polyester.

The top has navy piping and one chest pocket:

Length: 29" collar seam to the hem down back
Chest: 22" underarm to underarm across front
Sleeves: 23" from the shoulder seam to the cuff 

The matching pants have an elastic waist, with snap front and open fly.

Waist: 28" - 36"
Inseam: 28.5"
Rise: 14"
Hem opening: 9"

In great condition!