Always determine sizing by comparing measurements give to a garment that fits you well. All my pop t-shirts/jackets are vintage and in excellent shape. They may not be perfect but only with occasional minor flaws. All are very wearable and without significant flaws. Label: UniFirst, S Chest: 44 Inches Around (22" Arm pit to arm pit) / Shoulder Seams: 18" / Shoulder to Cuff: 25" / Length: 28"