Sweet Dreams Thermal Dog Pajamas

PJSS Features super soft 70% Cotton/25% Poly/5% Spandex. The PJ has fantastic stretch which makes it very comfortable to wear and easy to put on. We embroidered the bottom with "Sweet Dreams." It also features an OPEN TAIL END for quick potty breaks.  Machine wash, line dry. Sizing:X-Small - 8" Back, 10-13" Chest (Most Important), 7-10" NeckSmall - 10" Back, 13-16" Chest (Most Important), 10-12" NeckMedium - 12" Back, 16-19" Chest (Most Important), 12-14" NeckLarge - 15" Back, 19-22" Chest (Most Important), 14-17" NeckX-Large 16.5" Back, 19.5"-22.5" Chest (Most Important), 13"-15" Neck2X-Large 18.5" Back, 22.5"-25.5" Chest (Most Important), 14.5"-16.5" Neck