Pearl Izumi Thermal Lite Arm Warmers!
I'm what you might call "temperature sensitive". Meaning, I freak out if I'm too hot/cold. Funny I should be discussing this right now, because I'm sitting at my desk in my puffy down coat because this office is too dang cold (don't worry Mom, I only blog/waste time on my lunch). You can imagine my delight when I discovered these little gems! They are perfect to wear on a slightly chilly day when you just can't decide if you need long sleeves or not. They peel off easily while riding (or running!) and can be stuffed in a jersey pocket.
There are a couple different materials for arm warmers. From what I've seen, the most popular are fleece and a synthetic material. While I've never ridden in the fleece, when I was trying them out in the store, they seemed too heavy. If the weather were cold enough to warrant a fleece material, I'd rather wear a jacket. The synthetic material is more like Under Armour and I found it to be more fitting for my needs. I went for these at REI.com, but if you aren't a member and don't have a store near you (to get free shipping), then this website would provide the same product for less money. I especially like the neat design on the arm!
See how happy they make me?