- Body: 100% Polyamide - Trim: 100% Cotton - Lining: 100% Polyester - Down: 80/20 (90% Grey Duck Down) - Zip up closure - Please refer to the size chart for accurate measurements How to Measure Yourself Shoulder: Measure from shoulder tip to shoulder tip across the back. Pit to Pit: Measure from one armpit to the other across the fullest part of your chest. Back: Measure from the base of the neck to the bottom of the garment. Size Chart Size S M L XL XXL Shoulder (in/cm) 19" / 48.3 cm 20" / 50.8 cm 21" / 53.3 cm 22" / 55.9 cm 23" / 58.4 cm Pit to Pit (in/cm) 24" / 61 cm 25" / 63.5 cm 26" / 66 cm 27" / 68.6 cm 28" / 71.1 cm Back (in/cm) 27" / 68.6 cm 28" / 71.1 cm 29" / 73.7 cm 30" / 76.2 cm 31" / 78.7 cm