Size Chart Runs Small Slightly Small True To Size Slightly Large Runs Large S M L XL Size Measurement Standard Metric Small Chest 35 1/2" 90cm Small Sleeve Length 24 1/2" 62cm Small Waist 27 1/2" 70cm Small Dress Length 60" 152cm Small Neck Width (Laying Flat) 6 1/2" 17cm Size Measurement Standard Metric Medium Chest 37 1/2" 95cm Medium Sleeve Length 25" 64cm Medium Waist 29 1/2" 75cm Medium Dress Length 60 3/4" 154cm Medium Neck Width (Laying Flat) 6 3/4" 17cm Size Measurement Standard Metric Large Chest 40 1/2" 103cm Large Sleeve Length 25 1/2" 65cm Large Waist 32 1/2" 83cm Large Dress Length 61 3/4" 157cm Large Neck Width (Laying Flat) 7 1/8" 18cm Size Measurement Standard Metric X-Large Chest 44" 112cm X-Large Sleeve Length 26" 66cm X-Large Waist 36" 91cm X-Large Dress Length 62 3/4" 159cm X-Large Neck Width (Laying Flat) 7 3/8" 19cm Inches Centimeters Costume Sizing Tips