Arc'teryx Ether Comp Jersey - Long-Sleeve - Men's - 2008 BCS

I would think that Medium would be perfect for you - it won't be a skin tight fit, but you shouldn't be swimming in it either.

Not when Capaline is half the price, my humble opinion.

I wear it over a light base layer. Does the job well.

I thought the same thing until I actually bought one, (didn't pay $90 though) and you will understand after trying one out for a while. This is not an ordinary poly shirt...mine is nearly 2 years old and has seen hunting trips, camping trips, tree trimming and other things...and still looks new after several washes. As a challenge..just put the Ether Comp beside a Capilene or any other poly shirt and inspect them closely.

I've used both Capilene and this piece by Arc'teryx, but not anymore. When I thruhiked the AT I wanted something warm, durable, and lightweight; so I purchased the Quantum Dry Base Layer from 180s. You know that company that used to only sell the wrap around earmuffs? They've moved into base layers, and have a product that trumps both this and Capilene, while being cheaper than both.

Check it out, and a word to the guys at Backcountry... get your hands on some of these things. I'll be the first to give it a 5 star review.

http://180s.com/pages/catalog_view.aspx?g=1%2c2&y=4&i=118&c=36

here's why it's $90. Silkweight body that is way more durable against picks and pill than any other silkweight fabric. Lightweight softshell arms/shoulders. this thing will outlast any other lightweight performance shirt because of fabrics and construction.
Short answer, Yes it is, and so are you.

maybe...this only weighs 5.6 oz. And is very, very well made. Is the price worth the weight?