Arsenal FC Mens Dressing Gown Robe Hooded Fleece Official Football Gift

Is it just me or does the badge look dodgy? Is it really an official?

My son is 6ft and weighs between 8 stone & 9s 112 lb 126 lb what size m or l? do they come up tight in m. is this official with hologram etc.

What size would a 15 year old need

My son is 22 and approx 6ft height. He’s very tall and skinny can someone please help me with sizing not sure if to order M or L?