I typically wear a 10 in lulu bras, 36C/D in normal bras and got this in an L. The girls are definitely compressed but if I sized up the band would be too loose. The material isn't nulu but rather closer to a thicker luxtreme material (but is still soft) which I prefer for sweaty workouts. The cut and stitching is very similar to the Align tanks (even the back stitching match) although the inside liner is white instead of nude. I'm wearing this with the Lulu Loop Back Hoodie I got from the outlets ages ago.