I am a big fan of Montbell gear. Their new Ex Light Wind Vest comes in at a mere 37 grams. Pair this with these 28 gram shorts for an extremely light dry change (65 grams) eg when you are doing the washing. I usually wear a vest of some sort most days as I like to have my arms free for manual work on the farm so this vest will suit me to cut the wind chill on those shoulder season days.
‘This vest is made from our ultra-light, ultra-thin material that offers excellent breathability. Water repellant and small enough to fit in the palm of the hand when packed down, this vest is perfect for trekking and running. Its slimmer silhouette prevents movement in the wind. Packs easily into integrated stow pocket.’