The Greenstyle Waimea Rash Guard is not a pattern that I would normally make. I have never worn a rash guard and don't see myself wearing one to the pool anytime soon.
However, I thought the Waimea would make a cute t-shirt and that the color blocking might be perfect for some t-shirt upcycles. I have a slew of old t-shirts I have collected over the years that are 100% cotton with no stretch. I thought I might be able to hack the Waimea to use those t-shirts for the center panel.
For this Waimea I used a poly knit that had only 2-way stretch (the purplish constellations) and a 4-way stretch supplex for the rest. I think using a no-stretch/little stretch fabric for the center colorblocking works - if you make sure the finished bottom measurement is not smaller than your hipline. The fabrics I used are from Zenith & Quasar.
The outer colorblocking (stripey supplex) and I used it for the sleeves as well to ensure I had full range of movement.
When I was making my Waimea, I noticed that there was a drafting error in the pattern and the side seams did not match up. I was hoping to receive an updated copy and make a new version before the end of March (when the pattern was on sale) but that did not happen.
I was informed that the pattern was updated and to go to my account to download a new version. I have not taken the time to reprint the pattern to see if the drafting error has been fixed or not. I can say that the drafting error only seemed to effect the larger sizes.
Maybe later this year I'll reprint the Waimea and give it another try and use it for the upcycle I had in mind.