I used Alpha Direct to sew a hoodie, based on LearnMYOG's design. I used the hoodie as my insulation layer during a week of skiing in Utah recently and I am really impressed. By varying the base layer I wore and the amount of venting of my shell, I was able to handle temps everywhere from single digits to mid-30s.
Durability seems great and it is very sewable, even with my regular sewing machine (no serger) and below average sewing skills. I used foldover elastic for binding, which worked well. I'm excited to make more projects with Alpha Direct and hoping that RbTR will make many more colors available.
We love to hear that Benjamin! Polartec Alpha Direct 4004 is so breathable while still keeping you cozy and warm! We're glad it worked well for your ski trip!