Arc’teryx’s Ultralight and Packable Sima Hoodie Is a Rare $40 Off at REI
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Why We Love This Deal
REI recently unlocked a treasure trove of Arc’teryx deals, including discounts on some of the most popular styles in the brand’s lineup, like the Kyanite Fleece and the Beta SL Jacket. While this discounted gear is selling out quickly, a select few pieces are still available, including this lightweight, sun-blocking hoodie that is perfect for summer’s chillier moments.
The Arc’teryx Sima Hoody is on sale at REI for just $120; that’s a 25% discount from its $160 MSRP. REI not only has the best price and size selection for this hoodie, but it’s one of the few online retailers that even sells it. It’s no longer available (for men) at Arc’teryx, and major retailers like Dick’s Sporting Goods and Backcountry don’t have this item listed at all.
As is typically the case when Arc’teryx gear goes on sale, sizes are at risk of selling out. If the size you need disappears, it might be worth looking into Arc’teryx’s Squamish Hoody. This one was designed for climbing, but it’s a great option for travel (also packable) and hiking. Otherwise, REI’s own Swiftland Windshell Running Jacket, now available for $67, is a close alternative.
Arc’teryx Sima Hoody, $120 (was $160) at REI

What Shoppers Should Know
- Fabric: 100% recycled polyester
- UPF Rating: 50+
- Weight: 6.34 ounces
“Hoody” might make you think of fall and winter gear, but this is actually an awesome layer for summertime. Why? Its 100% polyester Diem fabric provides excellent sun protection—it’s rated UPF 50+, the highest UPF rating—and great breathability, too. The hood provides crucial coverage over your neck, and it’s designed to fit under a helmet, so it’ll play nice with your other gear.
The Sima is a great choice to wear during fishing trips, boat excursions, beach hangs, bike rides, or any scenario where you’ll be outside and active in the sun. You don’t have to worry about applying sunscreen or losing your sun protection as you sweat, and the Sima’s breathable fabric will keep you comfortable in warm weather.
Related: Arc’teryx’s Outdoor-Ready Beta SL Jacket Is a Rare 40% Off at REI
Here’s how the Sima stacks up against more familiar Arc’teryx layers. It can function as a base layer like the Rho LT, but it’s lighter and more breathable—the Rho has a fleecy interior lining that traps some warmth. And while the Sima lacks the weatherproofing of true jackets like the Gamma MX and Beta SL, it’s a much better choice for summer activities. Those other jackets can’t match its breathability; they will feel way too hot.
Shoppers are swarming over REI’s stash of Arc’teryx deals, and sizes are selling out quickly. Just one colorway of the Sima Hoody has a complete size range, so there’s not much time left for this 25% deal. Get one in your cart before they’re all gone.
Shop More Deals
- Arc’teryx Beta SL Shell Jacket, From $300 (was $500) at REI
- Arc’teryx Kyanite Lightweight Fleece Jacket, $99 (was $140) at REI
- Arc’teryx Delta Jacket, $150 (was $200) at REI
source https://www.mensjournal.com/shopping/arcteryx-sima-hoody-rei-sale-september-2026

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