I bought the Icebreaker based on other customer reviews here on Backcountry. All those comments were correct - it's a great brand with a great fitting top. I really liked the merino as a base layer instead of other materials. But as I zipped up the neck, I knew I could not keep the top. The angle of the zipper isn't the problem, but the end of the zipper came in under my jaw and rested painfully there no matter how I moved my neck. No way would I be able to wear it zipped for any period of time, and I am a up-to-the-neck turtleneck type of person. Bummed that this particular style didn't work, but would buy Icebreaker again anytime. Backcountry online support was great in helping me choose an alternative top when I returned this, BTW.