Shirt sizes

I’ve recently started following the London City Lionesses. Being Swedish, I’m a huge fan of Kosovare Asllani, so I’m really excited to follow the club. I would like to order a shirt but I can't find a sizeguide anywhere. I've tried to contact the club through their site but haven't got an answer. If anyone have any information about shirt sizes (mens and kids) or if anyone knows where I can get it, I would be very grateful! Since I live in Sweden, I'd like to avoid having to return it.