I also have 2a waves; my hair is baby fine too, so it gets weighed down really easily. I find that even water will pull out my wave. I do need some sort of product or my hair just looks "messy". I can actually do my hair 3 different ways and get 3 very different looks. I guess that's the joy of being such a loose wavy??

The only way I can get consistent wave is if I diffuse. Have you tried diffusing? Also, do you know if your hair is fine, med or coarse? That will help you figure out if your hair can tolerate/needs more protein.
2a-2bFii NP?

Low poo: Deva Low-Poo, Jessicurl GLS, Moroccanoil Volumizing Shampoo, Aveda Be Curly
Condish: Cure Care, Redken Body Full, Deva One C, and Jessicurl Aloeba
LI: Aveda Be Curly Style Prep <3
Products: Deva FFVF & Jessicurl Spiralicious (LOVE), TRESemme Curl Boosting Mousse
Hairspray: Aussie Sprunch, TRESemme Curl
locking Spray
Experimenting with lots of products in my cabinet...

My hair loves protein, plopping, and diffusing! Trying to find a way to style and air dry.