The Alloy Gray PJ features 100% Stretch Cotton Thermal Material that is made with interlock stitching. The body is super soft and has great "stretch and return" memory built in.
Sizing:
X-Small - 8" Back, 10-13" Chest (Most Important), 7-10" Neck
Small - 10" Back, 13-16" Chest (Most Important), 10-12" Neck
Medium - 12" Back, 16-19" Chest (Most Important), 12-14" Neck
Large - 15" Back, 19-22" Chest (Most Important), 14-17" Neck