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Jonas Abdo

Jonas Abdo

Jonas Abdo's Passions

Climbing
Skiing
Hiking & Camping

Jonas Abdo

Jonas Abdowrote a review of on August 15, 2017

The Perfect Midlayer
5 5

Familiarity: I've put it through the wringer
Fit: True to size
Height: 5' 10"
Weight: 145 lbs
Size Purchased: Medium

From the endless glaciers of Mount Rainier, to the massive granite faces of El Capitan, and the rugged ice clad peaks in the high Sierra the Arc'teryx Atom LT is perhaps the best insulating piece I have ever used. Its functionality is very well thought out, and with high versatility, decent durability, and high comfort it is a true workhorse in any environment. This jacket was designed with the intention of moving fast in the mountains, because of this the jacket is lightly insulated and highly breathable, but also surprisingly warm for how thin it feels. For storage, the jacket can be easily packed into its own sleeve.

Insulation
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The jacket uses 60 grams of Coreloft™ insulation. Composed of polyester, this material is durable, lightweight, dries far more quickly than down, and most importantly will still keep the user warm when wet.

Fabric
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The outer shell of the Atom LT is composed of 20 denier nylon Tyono™ fabric on the majority of the jacket, and a polyester/elastane Polartec® Power Stretch® fabric under the arms and on the sides of the jacket. The Polartec® fabric is extremely breathable, and is quite stretchy. This gives the user better range of motion especially when reaching overhead while climbing. The Tyono™ shell material is DWR treated and is thus highly water resistant. I have walked for miles in light to medium rain in this jacket while remaining completely dry. The same material also makes the jacket exceptionally wind resistant, The interior of the jacket is the same material as the outer with the exception of the underarms which are a soft comfortable fleece.



Comfort
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One of the greatest reasons that I love this jacket, is that it is incredibly comfortable and remains so indefinitely while moving in the mountains. Because of its superb breathability, the jacket has a massive comfortable temperature range. I have worn it from the mid sixties to the low twenties (Fahrenheit) and remained the same comfortable temperature. The hood is also climbing helmet compatible and works well both under and over a helmet. The jacket is also extremely lightweight for the warmth that it provides, and feels almost weightless as you glide across technical terrain with ease. This jacket makes the perfect mid-layer, and when paired with a good base layer and high end hard shell such as the Arc'teryx Alpha SV (review coming soon). It is perfect for almost any conditions in alpine environments weather hiking, climbing, backpacking, or skiing.



Reliability/Durability
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After 6 months of very heavy use in the mountains, the jacket is still in almost perfect condition/ The outer shell is surprisingly resilient for how thin and light it feels, and provides decent protection against abrasion. The jacket did get a small hole after getting snagged on a section of razor sharp rock while climbing in Wyoming, though this was easily repaired with a tiny Goretex patch. Other than that, one of the jacket's cuffs is starting to show signs of wear as a small hole has appeared where the cuff connects to the shell fabric. As far as reliability, this jacket has never failed me even after hundreds of hours in the mountains and in often heinous conditions; rain, snow, sleet, sand, dirt, nothing can stop this jacket from doing its job. When cared for properly and washed with an appropriate technical clothing detergent (Arc'teryx recommends Grangers, but Nikwax works just fine) the jacket remains in very good condition, and the insulation has not lost any loft whatsoever.

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Jonas Abdo

Jonas Abdowrote a review of on February 17, 2017

5 5

Familiarity: I've used it several times

These guys are ideal for alpine draws. Different colors for each length means that you can quickly extend gear placements to the desired length with minimal fiddling. Dyneema is highly water resistant as well which makes these ideal for ice climbing and alpine routes especially in low temperatures when runners freezing becomes a serious concern.

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