Athyn Scofieldwrote a review of Patagonia Nano-Air Light Hybrid Insulated Vest - Men's on April 1, 2019
Familiarity: I've used it several times
Fit: True to size
I bought this for a cool weather running piece and find myself wanting to wear it all the time, it's an incredible versatile layer, for the city, for the mountains, for the desert! The knit backing works incredibly well for venting, and helps to limit sweat buildup when you're working hard in the cold.