Adidas do (or they did last year) long sleeve climawarm tops, with thumb slots and a long neck. They are so good I got 3. Most of the time I don't need a jacket, but I got a very lightweight reflective one if needs be.
I'm still using a nano, which must be at least 6 or 7 years old. About the same size as the current one and fits perfectly into the small pockets on running shorts. Got to replace the headphones however, I use some philips ones with an over-the-ear clip thingy.