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Atom SL Hoody Men's is an insulated jacket designed for alpine adventures and hiking, built as a light, packable layer for big efforts in cold, wet conditions with breathable, weather-resistant protection.
Layer it under a men’s shell jacket for wet alpine days, and pair with men’s Gore-Tex pants for all-weather hiking.
Lighter than the original, the Atom SL Hoody is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility. Breathable and weather-resistant, it has stretch insulation in the body but not the sleeves or hood — maximizing packability while still delivering focused warmth to your core.
What's been updated: Updated with recycled Fortius™ Air 20 fabric, recycled stretch synthetic insulation, and FC0 DWR finish for improved mobility and a lower footprint. New Octa® Fleece side panels give enhanced breathability and less micro shedding. The StormHood™ is now lined and no longer stowable. The Bird logo is embroidered for long lasting visual.
Need a heavier option? Try the Atom Hoody.
Versatile synthetic insulated mid layers with a high degree of weather resistance.
Produced in a Fair Trade Certified facility. Building worker well-being into our product DNA.
Versatile high performance designs for diverse activities and conditions.
Superlight materials and design, emphasizing light weight and packability over durablity.
100% recycled stretch synthetic insulation throughout the core is warm yet highly breathable.
Windshell sleeves reduce weight and bulk when you’re stuffing it in your pack.
Stretchy fleece side panels up the breathability and give room to move.
A FC0 DWR Durable Water Repellent finish protects against light weather.
FC0 DWR (Durable Water Repellent) fabric treatment beads water for improved weather protection without potentially harmful PFAS substances.
The StormHood™ provides complete coverage with a unique design that adjusts to pivot with your head and maximize your field of view.
Synthetic insulation provides warmth even when wet. Abrasion-resistant and quick-drying, it delivers comfort and performance in demanding conditions.
Our trimmer fit is patterned to stay close to the body through the chest, waist, hip, and thigh. Its low profile eliminates bulk, moves with the body, and fits comfortably over first layers or under outer layers.
Size
Sleeve
Chest
Waist
Hip
XXS
78
84
69
83
XS
81
89
74
88
S
94
79
93
M
86
102
100
L
109
108
XL
91
119
104
118
XXL
129
114
128
3XL
96
139
124
138
30
33
27
32½
31½
35
29
34½
37
31
36½
34
40
39½
43
42½
36
47
40½
46½
51
44½
50
38
54½
48½
54
Europe
UK
China
Japan
Korea
42
32
170/88A
85
44
170/92A
90
46
170/96A
95
48
175/100A
52
175/108A
LL
110
56
180/116A
3L
120
60
180/128A
4L
130
64
180/136A
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NOTE: Men's fit has been updated with a revised fit. Medium size remains unchanged. Smaller sizes are now tighter and larger sizes are now looser. Arc'teryx sizes are intended to fit the above body measurements. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.
Note: Calculate your own body measurements, then select your product size.
1. Sleeve: With arm relaxed at your side and slightly bent, measure from centre back neck, across shoulder to elbow and down to wrist.
2. Chest: With arms relaxed at your sides, measure under your arms, around the fullest part of your chest
3. Waist: Measure around your waist at the narrowest part.
4. Hip: Standing with feet hip width apart, measure around your hips at the widest part.
Cut snug to the body through the entire garment to enhance moisture management and thermal efficiency.
Cut slim to the body through chest, waist, hip and thigh for a low profile fit.
Cut comfortably from the body through bust/chest, waist, hip and thigh for a classic fit.
Cut loosely through the waist, hip, and thigh for a casual fit.
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