Sizing refers to body measurements, not garment dimensions
How to measure:
Neck: Around the fullest part of the neck, at the base Chest: Around the chest, just under the arms and across the shoulder blades Sleeve: From the center back of the neck, across the shoulder, and down the arm to the wrist Waist: Around the narrowest part of the waist Hip: Around the widest point of the hips Inseam: From the crotch to the floor on the inside of the leg
WOMEN'S APPAREL SIZING
XXS
IN
CM
Neck
13
33
Bust
31-32
78.5-81
Sleeve
29.5
75
Waist
23.5-25
59.5-63.5
Hip
32.5-34
87.5-91.5
Inseam
29.5
75
XS
IN
CM
13.5
34.5
32.5-34
82.5-86.5
30.5
77.5
25.5-27
65-68.5
34.5-36
87.5-91.5
29.5
75
S
IN
CM
14
35.5
34.5-36
87.5-91.5
30.5
77.5
27.5-29
69.5-74
36.5-38
92.5-96.5
30.5
77.5
M
IN
CM
14.5
36.5
36.5-38.5
92.5-98
31
79
29.5-31.5
75-80
38.5-40.5
97.5-103
30.5
77.5
L
IN
CM
15
38
39-41.5
99-105.5
31
79
32-35
81-89
41-43.5
104-110.5
30.5
77.5
XL
IN
CM
16
40.5
42-45
106.5-114
31
79
35.5-39
90-99
44-47.5
111.5-120.5
30.5
77.5
2
IN
CM
26-27
66-68.5
35-36
89-91.5
29.5
75
4
IN
CM
27-28
68.5-71
36-37
91.5-94
30.5
77.5
6
IN
CM
28-29
71-73.5
37-38
94-96.5
30.5
77.5
8
IN
CM
29-30
73.5-76
38-39
96.5-99
30.5
77.5
10
IN
CM
30-31
76-78.5
39-40
99-101.5
30.5
77.5
12
IN
CM
31-32.5
78.5-82.5
40-41.5
101.5-105.5
30.5
77.5
Sizing refers to body measurements, not garment dimensions
How to measure: Neck: Around the fullest part of the neck, at the base Bust: Around the apex of the bust, just under the arms and across the shoulder blades Sleeve: From the center back of the neck, across the shoulder, and down the arm to the wrist Waist: Around the narrowest part of the waist Hip: Around the widest point of the hips Inseam: From the crotch to the floor on the inside of the leg
MEN'S/WOMEN'S SHOE SIZING
US MEN'S
US WOMEN'S
UK
EU
4
5.5
3
35.5
4.5
6
3.5
36
5
6.5
4
37
5.5
7
4.5
37.5
6
7.5
5
38
6.5
8
5.5
39
7
8.5
6
39.5
7.5
9
6.5
40
8
9.5
7
41
8.5
10
7.5
41.5
9
10.5
8
42
9.5
11
8.5
42.5
10
11.5
9
43
10.5
12
9.5
44
11
12.5
10
44.5
11.5
13
10.5
45
12
11
46
12.5
11.5
46.5
13
12
47
13.5
12.5
48
14
13
48.5
15
14
49.5
GLOVE SIZING
XS
IN
CM
Men's/Unisex
7.25-7.75
18.4-19.7
Women's
6.25-6.75
15.9-17.1
S
IN
CM
7.75-8.25
19.7-21
6.75-7.25
17.1-18.4
M
IN
CM
8.5-9
21.5-23
7.25-7.75
18.4-19.7
L
IN
CM
9-9.5
23-24
7.75-8.25
19.7-21
XL
IN
CM
9.5-10
24-25.4
N/A
N/A
Determine your size from the chart by choosing the larger of the two measurement results.
How to measure: Palm girth: Around your dominant hand at the knuckles with your fingers together Palm length: From the crease at the base of your wrist (on palm side) to the tip of your middle finger
Please note: Womens sizing applies to items specified as Womens-specific only. Please reference Mens/Unisex sizing otherwise
HALF DOME HELMET SIZING
S/M
Size Range
19-22.5 in
48-57 cm
Weight
11 oz
310 g
M/L
22-24 in
55-61.5 cm
12 oz
340 g
How to measure: Head: Measure around the largest part of the head - about one inch above the eyebrows.
VAPOR HELMET SIZING
S/M
21-23 in
53-59 cm
6.6 oz
188 g
M/L
23-25 in
58-63 cm
7 oz
199 g
How to measure: Head: Measure around the largest part of the head - about one inch above the eyebrows.
VECTOR HELMET SIZING
S/M
Size Range
21-23 in
53-59 cm
Weight
8.1 oz
230 g
M/L
23-25 in
58-63 cm
8.6 oz
245 g
How to measure: Head: Measure around the largest part of the head - about one inch above the eyebrows.
PACK SIZING
S/M
IN
CM
Torso
16-19
41-48
Waist
26-40
66-102
M/L
IN
CM
18.5-21.5
47-55
28-45
71-114
Unisex Small
IN
CM
15.5-18.5
40-47
27-32
69-81
Unisex Medium
IN
CM
17.5-20.5
45-52
29-34
73-86
Unisex Large
IN
CM
19.5-23.5
50-57
34-39
86-99
Men's Medium
IN
CM
Torso
17.5-20.5
45-52
Waist
29-34
73-86
Men's Large
IN
CM
19.5-23.5
50-57
34-39
86-99
Women's Small
IN
CM
Torso
15.5-18.5
40-47
Waist
27-29
69-74
Women's Medium
IN
CM
17.5-20.5
45-52
29-31
74-79
How to measure: Torso: From the base of the neck to the narrowest part of the waist. Waist: Around the narrowest part of the waist
Z-POLE SIZING
Height Range
Suggested Z-Pole Length
IN
CM
<5 ft 1
<154
100 cm
5 ft 1 - 5 ft 7
154-171
110 cm
5 ft 8 - 5 ft 11
172-182
120 cm
6 ft +
183 +
130 cm
How to measure: For Walking, hiking and backpacking: Stability and support matter most. Size up if you're right on a size cusp. For Running: Uphill propulsion matters most. Size down if you're right on a size cusp.
DISTANCE PACK/VEST SIZING
XS
CM
TORSO*
60-75
S
CM
TORSO*
68-85
M
CM
TORSO*
80-100
L
CM
TORSO*
90-112
WOMEN'S DISTANCE PACK/VEST SIZING
S
CM
TORSO*
60-75
M
CM
TORSO*
67-85
L
CM
TORSO*
80-100
Fit Guide
How to measure:
*Measure circumference of torso around lower ribs, not the chest
Beta Light Series Size Chart
Unisex
Size
Torso Length
Waist Circumference
XS
36 - 41 cm
61 - 107 cm
S
39 - 44 cm
69 - 114 cm
M
44 - 50 cm
74 - 122 cm
L
50 - 55 cm
79 - 130 cm
How to measure
Torso Length
Measure torso length from the base of your neck, following the natural curve of your spine down to the top of your hipbones.
Waist circumference.
Measure waist circumference by wrapping a tape measure around the narrowest part of your torso, typically above the hipbones
Distance FKT Strap
Sizing Guide
IN/CMINCM
Size
Measurement
S
6¾ - 8¼ in
M
8 - 9½ in
L
9 - 10½ in
How to measure Circumference
Wrap a tape measure around your dominant hand at the knuckles (excluding the thumb)
Dark Olive
2026-07-272026-08-03
The Storm 450 is engineered for epics in all conditions, featuring a robust waterproof/dustproof housing and 450 lumens of bright light. With Dual-Fuel compatibility, the Storm is powered with either a rechargeable BD 1500 Li-ion battery or three standard AAA batteries. The compact body is ergonomic, and the user interface includes a secondary switch for easy mode selection. In addition, the updated optical efficiency not only provides brighter light, but also saves battery life that you can now easily track with a six-setting, three-LED battery meter. The Storm 450 also has three different colored night vision modes and peripheral white lighting for close-range activities like carefully re-racking for the final summit pitch in the dark. The headlamp has our Brightness Memory feature, which allows you to turn the light on and off at a chosen brightness without reverting back to the default, full power setting. The Storm 450's PowerTap Technology enables you to quickly and easily access maximum brightness with the touch of a finger.
Product Features
PowerTap™ Technology allows instant adjustment between max output and dimmed power
Limited edition colors
Dual-Fuel: Maximum flexibility to utilize either Alkaline cells or a rechargeable Lithium Ion BD 1500 battery (sold separately)
450 Lumen max output
IP67: Waterproof-Tested to operate at least 1.0 meters underwater for 30 minutes
Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to default setting
Settings include full strength in proximity and distance modes, dimming, strobe, red, green and blue night-vision, and lock mode
Multifaceted optical lens design
Technology
Dual Fuel Rechargeable
With our Dual Fuel technology, the user has maximum flexibility to utilize either Black Diamond rechargeable Li-ion battery packs (sold separately) or Alkaline cells.
PowerTap Technology
Instant transitioning from any setting to full power light output with the tap of a finger.
