very comfortable.
Size Chart:
X-Small Back Length: 20cm/7" Chest: 30cm/11" (Most Important) Neck: 21cm/8"
Small Back Length: 25cm/9" Chest: 35cm/13" (Most Important) Neck: 24cm/9"
Medium Back Length: 30cm/11" Chest: 40cm/15" (Most Important) Neck: 27cm/10"
Large Back Length: 35cm/13" Chest: 45cm/17" (Most Important) Neck: 30cm/11"
X-Large Back Length: 40cm/15" Chest: 50cm/19" (Most Important) Neck: 33cm/12"
2X-Large Back Length: 45cm/17" Chest: 55cm/21" (Most Important) Neck: 36cm/14"
3X-Large Back Length: 50cm/19" Chest: 75cm/29" (Most Important) Neck: 40cm/15"
4X-Large Back Length: 55cm/21" Chest: 80cm/31" (Most Important) Neck: 43cm/16"
5X-Large Back Length: 60cm/23" Chest: 88cm/34" (Most Important) Neck: 46cm/18"
6X-Large Back Length: 65cm/25" Chest: 98cm/38" (Most Important) Neck: 49cm/19"