Really interesting to see how this latest Arcteryx Beta AR would turn out, it’s a great all round waterproof jacket that uses the new Gore Pro.
When you are in the great outdoors enjoying your mountain sport of choice, you need equipment you can rely on. At Ember Survival we always say when it comes to gear or clothing you should be unaware using it and that it seamlessly works with you.
The Arcteryx Beta AR. The separate collar is visible as is the hip length. The darker patches are the tougher face fabric.
The new Gore Pro which is used in the Arcteryx Beta AR, features increased breathability by up to 28% compared to the previous version of Pro, but it still keeps the same high level of waterproof protection. They have managed to achieve this jump in breathability by re-engineering the membrane to be as efficient as possible. Gone is the old PU (polyurethane) backer that lined the inside of the jacket, which even though it protected the membrane it did limit breathability somewhat. This is now replaced by a multi-layer ePTFE membrane with a rip stop backer.
Think of GoreTex’s membrane like a mesh with tiny holes acting as pores which are small enough to stop liquid water coming through but big enough to let water vapour escape, this is how your sweat vapour escapes through the jacket and allows for maximum levels of comfort, especially high intensity conditions. As the new Gore Pro has removed the PU backer there is now a continuous path of tiny pores from the inside to the outside of the jacket which results in the increased levels of breathability.