As seen in the US boutiques, the Cowboy Killer Tee is now avaliable at The Stockyard! 
 
Easily styled with jeans or can be dressed up with a leather skirt for a night out. 
I've rolled the sleeves for this photo, for reference I usually wear a UK 12 and have gone for a medium here for a relaxed fit. 
 
Measurements:
Small 44cm across chest, 62cm neckline too hem
Medium 50cm across chest, 64cm neckline too hem
Large 54cm across chest, 64cm neckline too hem
X Large 58cm across chest, 66cm neckline too hem
 
Material: 52% Cotton, 48% Polyester