Mountain Hardwear's Type 2 Fun 3/4 Zip Pullover is a great all round light-weight fleece which is always worth taking on a trip.
Mountain Hardwear says:
Here is the everyday fleece that lives in the backseat of your rig, year-round. Technical yet cozy, this midlayer fits bulk-free beneath a climbing harness. While trail running or skinning up a mountain pass, the pullover's micro-grid pattern against your back channels air for ultimate breathability.
Mountain Hardwear's Type 2 Fun 3/4 Zip Pullover is a comfy and stylish fleece well suited to year round use. Just at home yomping up a mountain or shooting the breeze at the campsite.
The micro grid pattern provides breathability and a decent weight to warmth ratio. The 3/4 zip is really useful for thermo regulation and makes it easier to get on and off. The Pullover has an athletic fit so you might want to go up a size if your not built like a fell runner.