I use this jacket SUP'ing in Colorado. It's nice & stretchy & moves with you. I loooove the scalloped bottom edge. I pair this with Roxy's neoprene capris to keep me warm in the chilly Colorado waters. I can SUP in early spring & fall in this! I've also used this jacket while whitewater rafting & it kept me nice & toasty. I keep it in my car all year & it even works on chilly nights just as a warm light jacket. Stop thinking & just get it!