I have spent many years/dollars trying to find the perfect white tee.
I wanted a fitted (not tight) v-neck. The Saba tee didn't work out too well for me despite many recs from Voguettes. Neither did Asos or any of the 5 random tees I bought in desperation.
Then I found Everlane. Their tees are 100% cotton and only USD$15!!!!
So I bought the white v-neck and a black one. Then I bought grey. Then I got a navy v-neck and a black u-neck. I'm now converted.
And this is the u-neck:
The u-neck is cut slightly larger so size down if you want a similar fit to the v-neck. I'm a 6 and I take XS in both v-neck and u-neck although I just noticed XXS in some tees so might try those out.
I've introduced the fiance to Everlane and he now owns more Everlane gear than I do. He's got v-neck tees, pocket tees and oxford shirts and loves them all.
The only catch is Everlane don't ship to Australia so you have to use a parcel forwarder which adds a fair bit to the cost of a tee ($24 shipping + $15 tee). Maybe grab a few tees and grab your other half some items to make it more worthwhile? I heard rumours they were working on shipping globally but not sure where that's at.
Everlane if you are reading this, are you going to start cutting the silk shirts in a XXS? The XS was too big for me but the silk shirt was gorgeous otherwise <3