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Made for alpine travel and mountain realities, the Beta SL Jacket – our lightest Beta – is carefully designed to deliver complete waterproof, windproof, breathable protection without sacrificing features or packability. Its next-generation GORETEX ePE membrane is light, thin, strong, and PFC free. C-KNIT backer technology improves comfort and breathability. The helmet-compatible StormHood protects without compromising vision, pit zippers ventilate, and a RECCO reflector can aid in search situations.
This product is free of intentionally added PFAS.
The new ePE membrane technology is lighter and thinner, but just as strong and durable as the materials we used before. You may notice the face fabric “wetting out” slightly faster in products with ePE membranes, but rest assured this does not affect the waterproofing of the membrane itself. If you notice the fabric wetting out faster than you’d like, simply wash the jacket and dry it to remove the oil contamination and bring the DWR back to its full power.
Versatile: high performance for diverse activities and conditions.
Produced in a Fair Trade Certified facility. Building worker well-being into our product DNA.
Superlight materials and design, emphasizing light weight and packability over durablity.
For technical mountain activities, durable and protective designs with a focus on freedom of movement for remote and varied 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 under outer layers.
Size
Sleeve
Chest
Waist
Hip
XXS
72
76
60
84
XS
75
81
65
89
S
77
86
70
94
M
80
91
99
L
83
107
XL
109
93
117
XXL
85
119
103
127
28½
30
23½
33
29½
32
25½
35
30½
34
27½
37
31½
36
39
32½
42
43
36½
46
33½
47
40½
50
EU
UK
China
Japan
Korea
4
160/80A
6
160/84A
10
165/88A
90
38
12
165/92A
95
16
170/100A
LL
100
20
170/108A
3L
110
24
175/120A
4L
120
NOTE: 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 center 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 bust
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.
78
69
74
88
79
102
108
104
118
129
114
128
3XL
96
139
124
138
27
29
34½
31
40
39½
42½
46½
51
44½
54½
48½
54
Europe
170/88A
44
170/92A
170/96A
48
175/100A
52
175/108A
56
180/116A
180/128A
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.
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
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