
Lululemon has brought the Power Y tank back. I really can't figure out why. I've tried to like it. I've owned a couple but ended up selling them on eBay. I just didn't like the thin straps; they always dug into my shoulders. I currently have two Ujayyi tanks and one Tri Y tank. I really like them. I find the support a lot better on those tanks than the Power Y. I think the built in bra is just a bit tighter. The thick straps are comfortable, too. I also really like the mesh panel with ipod pocket that runs down the back of the tank, particularly when I'm in spin class.
My personal observations aside, based on what I have seen on eBay the Spark (and the similar Repose and Sport) tank seems a lot more beloved than the Power Y. Unless the listing is poorly written, Spark tanks always engender a bidding war and sell for close to or over retail. Used ones sell very well, too. This rarely happens with the Power Y unless it is a discontinued print. Whatever. I just hope Lululemon brings back the Spark soon. Until then, I'll be shopping on eBay.
Note: Photo above shows Power Y, Tri Y, and Ujjayi.