Lately I've been sizing up to 6 in Lulu tanks, but the store only had size 4 and size 8 left. So I grabbed the 4. It actually fits quite loosely! So I'd say this tank fits true to size, or you could even size down if you like a snugger fit. Though it is on the short side. This tank actually doesn't scream "Lululemon" to me. The dual toned look reminds me of something that Nike would make.
Here it is on me:
I have the Lululemon Centered Energy bra in flash underneath - flash and grapefruit are quite similar:
The fabric of this tank in the front is swift. It's lightweight but it's not super breathable. I read one of the reviews online that said this fabric sticks to your skin once you start to sweat. I can see that. But I have yet to try it for a workout. It's not a huge concern to me though, since I mostly just do weights. I do get quite sweaty, don't get me wrong. But it's not the same as cardio which just drenches you like a sea monster lol.
The fabric on the back (the grapefruit part) is mesh, which is really nice and soft. It's definitely more breathable than swift.
Maybe because I had such bad experience with my flash items bleeding on me, that I'm afraid grapefruit would bleed onto the white part of the tank if I sweat in it! So far none of the reviews online have mentioned any issues with bleeding. But there are only 9 reviews so far and I'm just paranoid. I'll be sad and mad if that happens.
On a side note, I'm so in love with the new special edition wunder under crops that were uploaded tonight. I've been stalking them on the Australia site forever and finally ordered a pair last week, only to find out that they were coming to the US this week lol. But Australia only had size 6 left so that's what I got. Tonight I was able to order the size 4 from the US site which will no doubt arrive sooner than the 6 from Australia. How pretty are these! I hope they don't disappoint...