Somehow the Mountain Hardwear´s Beryllium feels like more than just a jacket. Designed for serious outdoor activities, it delivers everything you could expect from a jacket. Windproof, waterproof, breathable, lightweight and somehow it is even durable.
I have used it in tremendously humid tropical conditions kayaking through the San Blas Islands and the Coast of Colombia. It has kept me warm in dangerously cold and windy conditions up at around 20,000 feet elevation on the summit of an Ecuadorian volcano.
My buddy has the same jacket and I´ve seen him wipeout twice at high speeds over muddy patches, sliding on the pavement, but amazingly the jacket was unphased.
The Features I like:
Helmet ready hood allows me to cover my helmet and preserve a bit of ventilation, crucial for your head.
Welded components keep the jacket weatherproof on the seams, which are most vulnerable.
Climbing Pockets are a little high, most likely designed to be accessible with a harness or waiststrap on, but a bit awkward when sitting around the campsite.
Water-resistant zippers on the pockets make them much more useful.
Articulated sleeves allow the jacket to fit comfortably when cycling or climbing.
Internal pocket allows room for a water bottle (something I wished I realized before climbing Cotopaxi and having all my water supplies freeze).
Fits well with multiple layers (though I have a very small frame).
Summary: May no be the most cost effective solution for casual travelers and weekenders, but anybody going on serious adventures or trips will be happy to bring the Beryllium along. Mountain Hardwear´s commitment to high quality has really raised the bar with this jacket; it´s tough to imagine a better product out there.