All I remember for sure about these mesh white y-fronts is they are not Jockey brand underwear. I don’t remember if I got them from Amazon.uk or from someone on e-bay; I do remember seeing them on a guy on tumblr of one of the underwear forums (discussion groups) I used to frequent.
About the underwear: I don’t have a firm recollection of liking them…especially for all day wear. They are nice for lounging and even for some fun underwear play, but I really didn’t like them for wearing under clothes (to work or whatever).
Still, they are fashionable…if not somewhat revealing. What do you think?