Surge Backpack 31L TNF HERO
Surge Backpack 31L TNF BACK
Surge Backpack 31L TNF INT
Surge Backpack 31L TNF MODELBACK
Surge Backpack 31L TNF DETAIL1
Surge Backpack 31L TNF HERO
Surge Backpack 31L TNF BACK
Surge Backpack 31L TNF INT
Surge Backpack 31L TNF MODELBACK
Surge Backpack 31L TNF DETAIL1

Surge Backpack - 31L

With a 31-liter capacity, the Surge Backpack is a spacious, streamlined pack you can take almost anywhere....
$129.00
$129.00
Color: KZ3
Size: OS
Subtotal: $129.00
Size guide
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Description

With a 31-liter capacity, the Surge Backpack is a spacious, streamlined pack you can take almost anywhere. Clever design features like a water-repellent finish, 15'' laptop sleeve, and the ability to stand unsupported make it indispensable.

  • The FlexVent™ suspension system, certified by the American Chiropractic Association, has articulated shoulder straps, a rounded back panel, comfortable stitch lines and soft-touch chemise fabric
  • Stand-up design for easier packing and unpacking
  • Protective, dedicated 16'' laptop compartment
  • Large main compartment for books and binders
  • Front compartment has internal organization with secure-zip pockets and a padded tablet sleeve
  • External, fleece-lined pocket for sunglasses, phone or keys
  • Two durable water bottle pockets can easily double as multi-use pockets with quick-draw smartphone access on one side
  • Two external J-zip pockets, one lined with fleece
  • Bottom compression
  • Daisy-chain webbing offers lash points
  • Easy-to-use YKK® zippers
  • Comfortable, padded top grab handle
  • Sternum strap with a whistle buckle
  • Removable waist belt
  • Women-specific version available
  • Reflective details
  • DWR - Water repellent: A durable finish to allow for water beads on the surface of water repellent materials, preventing the fabric from saturating
  • Flexvent™ Suspension System: Enjoy maximum comfort and all-day support thanks to a flexible yoke, padded back and breathable lumbar panel
  • Water Bottle Pocket: Keep your water close at hand with an external bottle pocket
  • Reflective: Light reflective detailing
  • Recycled material: Recycled content – Helps reduce landfill waste and the use of virgin materials.
  • Laptop sleeve up to 16": This bag has space to hold a tablet or laptop up to 16".
  • Sizes : One size
  • Avg Weight : 2 lbs 12 oz (1260 g)
  • Dimensions : 12'' x 7'' x 20'' (30.5 cm x 17.8 cm x 50.8 cm)
  • Volume : 1892 in³ (31 liters)
  • Laptop Sleeve : 15'' x 11.5'' (38.1 cm x 29.2 cm)
  • solid : 210D recycled nylon ripstop with non-PFC durable water-repellent (non-PFC DWR) finish
  • heather : 300D heathered recycled polyester ripstop with non-PFC DWR finish
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Surge Backpack 31L TNF HERO

Surge Backpack - 31L

$129.00
Surge Backpack 31L TNF HERO
Surge Backpack 31L TNF BACK
Surge Backpack 31L TNF INT
Surge Backpack 31L TNF MODELBACK
Surge Backpack 31L TNF DETAIL1

Surge Backpack - 31L

$129.00
Color: KZ3
Size: OS
Size chart
Men's Footwear
US Size EU Size UK Size Foot Length (in) Standard Width (D) Wide Width (EE)
7 40 6 9.6–9.8 3.4–3.5 3.7–3.8
8 41 7 9.9–10.1 3.5–3.6 3.8–3.9
9 42 8 10.2–10.4 3.6–3.7 3.9–4.0
10 43 9 10.5–10.7 3.7–3.8 4.0–4.1
11 44 10 10.8–11.0 3.8–3.9 4.1–4.2
12 45 11 11.1–11.3 3.9–4.0 4.2–4.3
13 46 12 11.4–11.6 4.0–4.1 4.3–4.4

* Sneakers/Boots: True to size. Sandals: Size up ½ size for wide feet.

Women's Footwear
US Size EU Size UK Size Foot Length (in) Standard Width (B) Wide Width (D)
5 35 3 8.5–8.7 3.0–3.1 3.3–3.4
6 36 4 8.8–9.0 3.1–3.2 3.4–3.5
7 37 5 9.1–9.3 3.2–3.3 3.5–3.6
8 38 6 9.4–9.6 3.3–3.4 3.6–3.7
9 39 7 9.7–9.9 3.4–3.5 3.7–3.8
10 40 8 10.0–10.2 3.5–3.6 3.8–3.9
11 41 9 10.3–10.5 3.6–3.7 3.9–4.0

* Heeled styles: Size up ½ size. Flats/Sneakers: True to size.

Men's Apparel
US Size Chest (in) Waist (in) Neck (in) Sleeve (in) Inseam (in)
XS 33–35 27–29 13.5–14 31–32 30
S 36–38 30–32 14.5–15 32–33 30–32
M 39–41 33–35 15.5–16 33–34 32–33
L 42–44 36–38 16.5–17 34–35 33–34
XL 45–48 39–42 17.5–18 35–36 34–35
XXL 49–52 43–46 18.5–19 36–37 35–36
XXXL 53–56 47–50 19.5–20 37–38 36

* Regular Fit: Classic cut. Athletic Fit: Tapered waist, extra room in chest/arms.

Women's Apparel
US Size Bust (in) Waist (in) Hip (in) Sleeve (in) Inseam (in)
XS (0–2) 31–33 24–26 34–36 29–30 30
S (4–6) 34–36 27–29 37–39 30–31 30–32
M (8–10) 37–39 30–32 40–42 31–32 32–33
L (12–14) 40–43 33–36 43–46 32–33 33–34
XL (16–18) 44–47 37–40 47–50 33–34 34–35
XXL (20–22) 48–51 41–44 51–54 34–35 35–36
Plus 1X (16W) 45–47 38–40 47–49 33–34 34
Plus 2X (18W–20W) 48–51 41–44 50–53 34–35 34–35

* Relaxed Fit: Loose through body. Slim Fit: Contoured to shape.

Kids' Footwear & Apparel
US Size Age Range Foot Length (in) Chest/Waist (in) Height (in)
Toddler 5–7 1–3 yrs 5.0–5.8 20–22 30–36
Little Kid 8–11 4–7 yrs 5.9–6.8 23–25 37–48
Big Kid 12–4 8–12 yrs 6.9–8.3 26–30 49–60

* Kids' shoes include growing room (½ inch extra length).

Socks
Size Fits US Shoe Size Foot Length (in) Calf Circumference (in)
Kids (S–M) Youth 9–3 5.5–8.0 8–10
Women's (S–M) 5–9 8.5–10.0 10–13
Women's (L–XL) 9–12 10.0–11.3 13–15
Men's (S–M) 6–9 9.9–10.7 13–15
Men's (L–XL) 9–13 10.7–11.6 15–17
One Size Women 6–10 / Men 5–11 9.0–11.0 12–16

* Compression socks: Size down for tighter fit. Casual socks: True to size.

* All measurements are in inches. Measure over lightweight clothing/bare feet for best accuracy.
* Between sizes? Size up for a relaxed fit, size down for a snug fit.
* Fit may vary slightly by fabric stretch, wash treatment, and construction. Need help? Contact our support team.

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