Primegreen Slipdress

I thought this would be an easy lightweight dress to slip into in the summer, but turned out to be such a weird and uncomfortable fit. I don't have a large chest but it was too constrictive and high-cut around that area (practically digging into armpits), then way too loose and shapeless at the waist and below, even XS. It's also the most awkward knee-ish length, causing calves/legs to look short. It would look much better if it were shorter, and I would've considered altering it had it not also had the comfort issue on top. The fabric is also quite heavy and bulky.