Oh, I've no doubt that tunic and trous are popular choices under the robes, but the supplies list says three student robes, black, not three sets of business casual uniform and tie with an open front sleevey cape thing. With tge warmer weather, Kid Snape jud had his grundies on under the robe, and there was the fellow at the World Cup in a muggle sundress because he liked a refreshing breeze 'round his privates, so it probably varies by personal preference, but in general yes, high fantasy wizard robes.
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows