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Arc'Teryx Alpha FL 45 Backpack is no longer available
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Quick View
Color:
Black
Pilot
Fortune
Size:
SIZE CHART

Sizing Information

Measurements are in inches, unless otherwise noted.

MEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XXS 31 34 28 33½
XS 32 36 30 35½
S 33 38 32 37½
M 34 40 34 39½
L 35 43 37 42½
XL 36 46 40 45½
XXL 37 37 44 49½

MEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 28 33½ 31½ - -
XS 30 35½ 31½ 29½ 34½
S 32 37½ 32 30 35
M 34 39½ 32½ 30½ 35
L 37 42½ 33 31 35½
XL 40 45½ 33 31½ 36
XXL 44 49½ 33 31½ 36

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 29½ 35½ 31½ 29½ 34½
29 30½ 36½ 32 30 35
30 31½ 37½ 32 30 35
31 32½ 38½ 32 30 35
32 33½ 39½ 32½ 30½ 35
33 34½ 40½ 32½ 30½ 35½
34 35½ 41½ 32½ 30½ 35½
36 37½ 43½ 33 31 36
38 39½ 45½ 33 31 36

WOMEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XS 29½ 33 27 36
S 30½ 35 28½ 38
M 31½ 37 30½ 40
M 31½ 37 30½ 40
L 32½ 40 34 43½
XL 33 44 38 47

WOMEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XS 27 36 30½ 28½ 33½
S 28½ 38 31 29 34
M 30½ 40 31 29 34
L 34 43½ 31½ 29½ 34½
XL 38 47 32 30 35

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
00 24 33½ 30½ 29 -
0 25 34½ 30½ 29 -
2 34½ 36 30½ 29 -
4 27½ 37 31 29 34
6 28½ 38 31 29 34
8 30 39½ 31 29 34
10 31 40½ 31½ 29 34
12 33 42½ 31½ 29 34
14 35 44½ 31½ - 34

UNISEX HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
S 29½-32 22-23½
M 32-34½ 23½-25
L 34½-38 25-26½
XL 38-41 25½-28

MEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 20½-22
S 30-32 21½-23
M 32-34½ 23-24½
L 35-38½ 24½-26
XL 39-42 26½-28

MEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 21-22
S 30-32 22-23
M 32-34 23-24½
L 34-37½ 24½-26
XL 37½-41 26-28

WOMEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25-27 20½-22
S 27-29 21½-23
M 29-32 23-24½
L 32½-36 24½-26
XL 36-39½ 26½-28

WOMEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25½-27½ 21½-23
S 27½-29½ 23-24
M 29½-31½ 24-25
L 31½-34½ 25-26½
XL 34½-38½ 26½-29

FOOTWEAR SIZING CHART

YOUR FOOT MEASUREMENTS:

CM US M's US W's UK EU Mondo
22 - 5 3.5 36 22
22.5 - 5.5 4 36⅔ 22.5
23 - 6 4.5 36⅓ 22.5
23.5 - 6.5 5 38 23.5
24 - 7 5.5 38⅔ 24
24.5 - 7.5 6 39⅓ 24.5
25 7 8 6.5 40> 25
25.5 7.5 8.5 7 40⅔ 25.5
26 8 9 7.5 41⅓ 26
26.5 8.5 9.5 8 42 26.5
27 9 10 8.5 42⅔ 27
27.5 9.5 10.5 9 43⅓ 27.5
28 10 11 9.5 44 28
28.5 10.5 11.5 10 44⅔ 28.5
29 11 12 10.5 45⅓ 29
29.5 11.5 - 11 46 29.5
30 12 - 11.5 46⅔ 30
30.5 12.5 - 12 47⅓ 30.5
31 13 - 12.5 48 31
31.5 13.5 - 13 48⅔ 31.5
32 14 - 13.5 49⅓ 32

UNISEX GLOVE/MITTEN SIZING CHART

YOUR FOOT MEASUREMENTS:

Size Hand Length Palm Circumference
XS 7-7¼ 7¼-7¾
S 7¼-7½ 7¾-8⅛
M 7½-7¾ 8⅛-8⅝
L 7¾-8 8⅝-8⅞
XL 8-8¼ 8⅞-9¼

HAT SIZING CHART

YOUR HEAD MEASUREMENTS IN INCHES:

Size Head Circumference
S-M 21¾-22½
L-XL 22¾-23½
One-size-fits-all 21¾-23½
Notify Me When Available
Quick View
Color:
Silva
Nocturne
Caribou
24K Black
SIZE CHART

Sizing Information

Measurements are in inches, unless otherwise noted.

MEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XXS 31 34 28 33½
XS 32 36 30 35½
S 33 38 32 37½
M 34 40 34 39½
L 35 43 37 42½
XL 36 46 40 45½
XXL 37 37 44 49½

MEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 28 33½ 31½ - -
XS 30 35½ 31½ 29½ 34½
S 32 37½ 32 30 35
M 34 39½ 32½ 30½ 35
L 37 42½ 33 31 35½
XL 40 45½ 33 31½ 36
XXL 44 49½ 33 31½ 36

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 29½ 35½ 31½ 29½ 34½
29 30½ 36½ 32 30 35
30 31½ 37½ 32 30 35
31 32½ 38½ 32 30 35
32 33½ 39½ 32½ 30½ 35
33 34½ 40½ 32½ 30½ 35½
34 35½ 41½ 32½ 30½ 35½
36 37½ 43½ 33 31 36
38 39½ 45½ 33 31 36

WOMEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XS 29½ 33 27 36
S 30½ 35 28½ 38
M 31½ 37 30½ 40
M 31½ 37 30½ 40
L 32½ 40 34 43½
XL 33 44 38 47

WOMEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XS 27 36 30½ 28½ 33½
S 28½ 38 31 29 34
M 30½ 40 31 29 34
L 34 43½ 31½ 29½ 34½
XL 38 47 32 30 35

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
00 24 33½ 30½ 29 -
0 25 34½ 30½ 29 -
2 34½ 36 30½ 29 -
4 27½ 37 31 29 34
6 28½ 38 31 29 34
8 30 39½ 31 29 34
10 31 40½ 31½ 29 34
12 33 42½ 31½ 29 34
14 35 44½ 31½ - 34

UNISEX HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
S 29½-32 22-23½
M 32-34½ 23½-25
L 34½-38 25-26½
XL 38-41 25½-28

MEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 20½-22
S 30-32 21½-23
M 32-34½ 23-24½
L 35-38½ 24½-26
XL 39-42 26½-28

MEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 21-22
S 30-32 22-23
M 32-34 23-24½
L 34-37½ 24½-26
XL 37½-41 26-28

WOMEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25-27 20½-22
S 27-29 21½-23
M 29-32 23-24½
L 32½-36 24½-26
XL 36-39½ 26½-28

WOMEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25½-27½ 21½-23
S 27½-29½ 23-24
M 29½-31½ 24-25
L 31½-34½ 25-26½
XL 34½-38½ 26½-29

FOOTWEAR SIZING CHART

YOUR FOOT MEASUREMENTS:

CM US M's US W's UK EU Mondo
22 - 5 3.5 36 22
22.5 - 5.5 4 36⅔ 22.5
23 - 6 4.5 36⅓ 22.5
23.5 - 6.5 5 38 23.5
24 - 7 5.5 38⅔ 24
24.5 - 7.5 6 39⅓ 24.5
25 7 8 6.5 40> 25
25.5 7.5 8.5 7 40⅔ 25.5
26 8 9 7.5 41⅓ 26
26.5 8.5 9.5 8 42 26.5
27 9 10 8.5 42⅔ 27
27.5 9.5 10.5 9 43⅓ 27.5
28 10 11 9.5 44 28
28.5 10.5 11.5 10 44⅔ 28.5
29 11 12 10.5 45⅓ 29
29.5 11.5 - 11 46 29.5
30 12 - 11.5 46⅔ 30
30.5 12.5 - 12 47⅓ 30.5
31 13 - 12.5 48 31
31.5 13.5 - 13 48⅔ 31.5
32 14 - 13.5 49⅓ 32

UNISEX GLOVE/MITTEN SIZING CHART

YOUR FOOT MEASUREMENTS:

Size Hand Length Palm Circumference
XS 7-7¼ 7¼-7¾
S 7¼-7½ 7¾-8⅛
M 7½-7¾ 8⅛-8⅝
L 7¾-8 8⅝-8⅞
XL 8-8¼ 8⅞-9¼

HAT SIZING CHART

YOUR HEAD MEASUREMENTS IN INCHES:

Size Head Circumference
S-M 21¾-22½
L-XL 22¾-23½
One-size-fits-all 21¾-23½
Notify Me When Available
Quick View
Color:
Binary
Fortune
Wander
Dark Mirai
Ladon
Black
Bushwhack
Cobalt Moon
Dark Dakini
Dynasty
Illucinate
Iliad
Robotica
Chloroplast
Pilot
Rigel
SIZE CHART

Sizing Information

Measurements are in inches, unless otherwise noted.

MEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XXS 31 34 28 33½
XS 32 36 30 35½
S 33 38 32 37½
M 34 40 34 39½
L 35 43 37 42½
XL 36 46 40 45½
XXL 37 37 44 49½

MEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 28 33½ 31½ - -
XS 30 35½ 31½ 29½ 34½
S 32 37½ 32 30 35
M 34 39½ 32½ 30½ 35
L 37 42½ 33 31 35½
XL 40 45½ 33 31½ 36
XXL 44 49½ 33 31½ 36

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 29½ 35½ 31½ 29½ 34½
29 30½ 36½ 32 30 35
30 31½ 37½ 32 30 35
31 32½ 38½ 32 30 35
32 33½ 39½ 32½ 30½ 35
33 34½ 40½ 32½ 30½ 35½
34 35½ 41½ 32½ 30½ 35½
36 37½ 43½ 33 31 36
38 39½ 45½ 33 31 36

WOMEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XS 29½ 33 27 36
S 30½ 35 28½ 38
M 31½ 37 30½ 40
M 31½ 37 30½ 40
L 32½ 40 34 43½
XL 33 44 38 47

WOMEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XS 27 36 30½ 28½ 33½
S 28½ 38 31 29 34
M 30½ 40 31 29 34
L 34 43½ 31½ 29½ 34½
XL 38 47 32 30 35

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
00 24 33½ 30½ 29 -
0 25 34½ 30½ 29 -
2 34½ 36 30½ 29 -
4 27½ 37 31 29 34
6 28½ 38 31 29 34
8 30 39½ 31 29 34
10 31 40½ 31½ 29 34
12 33 42½ 31½ 29 34
14 35 44½ 31½ - 34

UNISEX HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
S 29½-32 22-23½
M 32-34½ 23½-25
L 34½-38 25-26½
XL 38-41 25½-28

MEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 20½-22
S 30-32 21½-23
M 32-34½ 23-24½
L 35-38½ 24½-26
XL 39-42 26½-28

MEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 21-22
S 30-32 22-23
M 32-34 23-24½
L 34-37½ 24½-26
XL 37½-41 26-28

WOMEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25-27 20½-22
S 27-29 21½-23
M 29-32 23-24½
L 32½-36 24½-26
XL 36-39½ 26½-28

WOMEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25½-27½ 21½-23
S 27½-29½ 23-24
M 29½-31½ 24-25
L 31½-34½ 25-26½
XL 34½-38½ 26½-29

FOOTWEAR SIZING CHART

YOUR FOOT MEASUREMENTS:

CM US M's US W's UK EU Mondo
22 - 5 3.5 36 22
22.5 - 5.5 4 36⅔ 22.5
23 - 6 4.5 36⅓ 22.5
23.5 - 6.5 5 38 23.5
24 - 7 5.5 38⅔ 24
24.5 - 7.5 6 39⅓ 24.5
25 7 8 6.5 40> 25
25.5 7.5 8.5 7 40⅔ 25.5
26 8 9 7.5 41⅓ 26
26.5 8.5 9.5 8 42 26.5
27 9 10 8.5 42⅔ 27
27.5 9.5 10.5 9 43⅓ 27.5
28 10 11 9.5 44 28
28.5 10.5 11.5 10 44⅔ 28.5
29 11 12 10.5 45⅓ 29
29.5 11.5 - 11 46 29.5
30 12 - 11.5 46⅔ 30
30.5 12.5 - 12 47⅓ 30.5
31 13 - 12.5 48 31
31.5 13.5 - 13 48⅔ 31.5
32 14 - 13.5 49⅓ 32

UNISEX GLOVE/MITTEN SIZING CHART

YOUR FOOT MEASUREMENTS:

Size Hand Length Palm Circumference
XS 7-7¼ 7¼-7¾
S 7¼-7½ 7¾-8⅛
M 7½-7¾ 8⅛-8⅝
L 7¾-8 8⅝-8⅞
XL 8-8¼ 8⅞-9¼

HAT SIZING CHART

YOUR HEAD MEASUREMENTS IN INCHES:

Size Head Circumference
S-M 21¾-22½
L-XL 22¾-23½
One-size-fits-all 21¾-23½
Notify Me When Available
Quick View
Color:
Pilot
Black
SIZE CHART

Sizing Information

Measurements are in inches, unless otherwise noted.

MEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XXS 31 34 28 33½
XS 32 36 30 35½
S 33 38 32 37½
M 34 40 34 39½
L 35 43 37 42½
XL 36 46 40 45½
XXL 37 37 44 49½

MEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XXS 28 33½ 31½ - -
XS 30 35½ 31½ 29½ 34½
S 32 37½ 32 30 35
M 34 39½ 32½ 30½ 35
L 37 42½ 33 31 35½
XL 40 45½ 33 31½ 36
XXL 44 49½ 33 31½ 36

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
28 29½ 35½ 31½ 29½ 34½
29 30½ 36½ 32 30 35
30 31½ 37½ 32 30 35
31 32½ 38½ 32 30 35
32 33½ 39½ 32½ 30½ 35
33 34½ 40½ 32½ 30½ 35½
34 35½ 41½ 32½ 30½ 35½
36 37½ 43½ 33 31 36
38 39½ 45½ 33 31 36

WOMEN'S JACKET/SHIRT SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Sleeve Chest Waist Hip
XS 29½ 33 27 36
S 30½ 35 28½ 38
M 31½ 37 30½ 40
M 31½ 37 30½ 40
L 32½ 40 34 43½
XL 33 44 38 47

WOMEN'S PANTS SIZING CHART

ALPHA SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
XS 27 36 30½ 28½ 33½
S 28½ 38 31 29 34
M 30½ 40 31 29 34
L 34 43½ 31½ 29½ 34½
XL 38 47 32 30 35

NUMERICAL SIZING-YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Hip Regular Inseam Short Inseam Tall Inseam
00 24 33½ 30½ 29 -
0 25 34½ 30½ 29 -
2 34½ 36 30½ 29 -
4 27½ 37 31 29 34
6 28½ 38 31 29 34
8 30 39½ 31 29 34
10 31 40½ 31½ 29 34
12 33 42½ 31½ 29 34
14 35 44½ 31½ - 34

UNISEX HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
S 29½-32 22-23½
M 32-34½ 23½-25
L 34½-38 25-26½
XL 38-41 25½-28

MEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 20½-22
S 30-32 21½-23
M 32-34½ 23-24½
L 35-38½ 24½-26
XL 39-42 26½-28

MEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 28-30 21-22
S 30-32 22-23
M 32-34 23-24½
L 34-37½ 24½-26
XL 37½-41 26-28

WOMEN'S HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25-27 20½-22
S 27-29 21½-23
M 29-32 23-24½
L 32½-36 24½-26
XL 36-39½ 26½-28

WOMEN'S C-QUENCE HARNESS SIZING CHART

YOUR BODY MEASUREMENTS IN INCHES:

Size Waist Thigh
XS 25½-27½ 21½-23
S 27½-29½ 23-24
M 29½-31½ 24-25
L 31½-34½ 25-26½
XL 34½-38½ 26½-29

FOOTWEAR SIZING CHART

YOUR FOOT MEASUREMENTS:

CM US M's US W's UK EU Mondo
22 - 5 3.5 36 22
22.5 - 5.5 4 36⅔ 22.5
23 - 6 4.5 36⅓ 22.5
23.5 - 6.5 5 38 23.5
24 - 7 5.5 38⅔ 24
24.5 - 7.5 6 39⅓ 24.5
25 7 8 6.5 40> 25
25.5 7.5 8.5 7 40⅔ 25.5
26 8 9 7.5 41⅓ 26
26.5 8.5 9.5 8 42 26.5
27 9 10 8.5 42⅔ 27
27.5 9.5 10.5 9 43⅓ 27.5
28 10 11 9.5 44 28
28.5 10.5 11.5 10 44⅔ 28.5
29 11 12 10.5 45⅓ 29
29.5 11.5 - 11 46 29.5
30 12 - 11.5 46⅔ 30
30.5 12.5 - 12 47⅓ 30.5
31 13 - 12.5 48 31
31.5 13.5 - 13 48⅔ 31.5
32 14 - 13.5 49⅓ 32

UNISEX GLOVE/MITTEN SIZING CHART

YOUR FOOT MEASUREMENTS:

Size Hand Length Palm Circumference
XS 7-7¼ 7¼-7¾
S 7¼-7½ 7¾-8⅛
M 7½-7¾ 8⅛-8⅝
L 7¾-8 8⅝-8⅞
XL 8-8¼ 8⅞-9¼

HAT SIZING CHART

YOUR HEAD MEASUREMENTS IN INCHES:

Size Head Circumference
S-M 21¾-22½
L-XL 22¾-23½
One-size-fits-all 21¾-23½
Notify Me When Available
Badge
Quick View
Color:
Wander
Figment
Fortune
Pilot
Gravity
Exosphere
Black
Size:
Notify Me When Available
Badge
Quick View
Color:
Fortune
Figment
Gravity
Exosphere
Pilot
Black
Wander
Size:
Notify Me When Available
Badge
Quick View
Color:
Black II
Pilot
Dimma
Nereus
Wildwood
Notify Me When Available
Badge
Quick View
Color:
Black
Cayenne
Size:
Notify Me When Available
Badge
Quick View
Color:
Black
Cayenne
Size:
Notify Me When Available

Arc'Teryx Alpha FL 45 Backpack

Color:
Black
Cayenne
Size:
Notify Me When Available
The Arc’teryx attention to performance details, focus on delivering maximum functionality with minimalist design, and unrivaled commitment to craftsmanship combine in a fast, light, hardwearing pack for climbers and ski alpinists. It begins with the materials. Highly weather resistant, light in weight, and designed for the rigors of ice and granite, the N400-AC² pack fabric is coated inside and out to create an air and water impermeable fabric that resists almost any weather condition and is very resistant to abrasion.

A comfortable carry is key. The Alpha SL 45 uses an HD 80 foam back panel to provide support, structure and padding. The efficient suspension system offers load support for minimal weight. Unique thermoformed shoulder straps combine the N400r-AC² nylon 6 ripstop, Burly™ Double Weave fabric and HyPUR-cel™ foam. The result is an air permeable strap that provides comfort and minimizes irritation, yet is surprisingly light in weight. A simple 40mm webbing belt helps minimize sway while navigating technical routes. The pack weighs a mere 670 grams (23.6 ounces) and is optimized to work with other Arc’teryx Ascent products to deliver an ultrafast, ultralight alpine system ready for the harshest conditions.

Moving fast still requires carrying the essentials. The 45L capacity provides enough volume for a long day's ski or a minimalist's multi-day trip. Instead of the traditional lid, a combination drawstring and RollTop™ closures are employed. This design reduces weight by eliminating the top lid that is generally shoved inside when on route, improves speed and accessibility to the main compartment, and allows users to increase or decrease pack volume as necessary. When not needed, the RollTop™ tucks into the pack and out of the way, leaving the drawstring collar to seal the pack. Lash points on the front and each side help carry skis or a sleeping pad, and the bungee attachment holds crampons, ice tools, or can stash a jacket for quick access when the weather turns. Two loops at the top permit the pack to be hauled, and a top strap secures a rope. Every gram counts, so there are no extraneous features or construction elements. Even the seam tape is stripped down to a scant 15mm wide.

Features
  • Lightweight, minimalist climbing and alpinism products that protect from alpine environments.
  • Laminated, highly waterproof and light weight. Taped seams, permits custom attachments.
  • Minimalist, high performance and light weight, for rapid travel in variable conditions.
  • Climbing equipment designed for efficient movement and protection in alpine environments.