SKU: 15252141056
hyperlite mountain gear unbound 40

hyperlite mountain gear unbound 40 Hyperlite Mountain Gear Unbound (40L) — Tom's Outdoors

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Description

hyperlite mountain gear unbound 40 Hyperlite Mountain Gear Unbound (40L) — Tom's OutdoorsProduct Description Hike with no bounds with Hyperlite Mountain Gear's Unbound 40L Lightweight, Durable and Versatile for Outdoor Enthusiasts! The Hyperlite Mountain Gear Unbound (40L) is the ultimate backpack for those who demand durability, functionality, and ultralight design in one package. This backpack is made from Dyneema Fabric, which is known for its incredible strength to weight ratio, making it virtually indestructible in harsh conditions.

Hike with no bounds with Hyperlite Mountain Gear's Unbound 40L - Lightweight, Durable and Versatile for Outdoor Enthusiasts!

The Hyperlite Mountain Gear Unbound (40L) is the ultimate backpack for those who demand durability, functionality, and ultralight design in one package.

This backpack is made from Dyneema Fabric, which is known for its incredible strength-to-weight ratio, making it virtually indestructible in harsh conditions. With a capacity of 40 litres, the Unbound backpack is perfect for lengthy thru-hikes to weekend trips, and its minimalist design allows you to carry everything you need without any unnecessary bulk.

The roll-top closure and side and top compression straps keep your gear secure and compact, while the removable hip belt adds extra stability and support. The Unbound backpack features a spacious main compartment with a front stretch pocket and side water bottle holders, providing quick access to your essential items, such as snacks, maps, and navigation tools. It's the perfect backpack for hikers who demand a backpack that can handle anything and everything.

The Hyperlite Mountain Gear Unbound (40L) is an excellent investment for anyone who wants a backpack that is tough enough to take on any adventure yet lightweight and functional to make your journey as comfortable and enjoyable as possible.

Features


  • Top Closure: Roll-top closure system with removable side compression straps for customisable compression
  • Hip Belt: Updated removable hipbelt featuring zippered pockets, more cushion, and additional daisy chains for modularity. Built using Hardline with Dyneema, dual-density 1/8" closed cell rigid foam, 1/4" closed cell foam, and spacer mesh
  • Back: Integrated plastic sheet with 1/4" high-density foam back panel pad
  • Loops: Grab Loop
  • Side Straps: Removable vertical compression straps
  • Top Compression Straps: Top Y-strap compression - Designed to secure gear
  • Shoulder Straps: Hardline with Dyneema shoulder straps with 3/8" closed cell foam and spacer mesh
  • Sternum Straps: Updated sternum strap allows for easy adjustments along shoulder strap daisy chains
  • Buckles/Bungees: New 5/8" hardware minimises weight without sacrificing durability
  • Stays: One removable, contoured aluminium stay
  • Sealing: Seam tape on all vertical side seams and behind all sewn-on pack features
  • Pack Accessories Options: Shoulder Pocket, Versa, Stuff Sacks, and Pods
  • Daisy Chains: Four 1/4" vertical daisy chains for attaching extra gear for trip-specific customisation, in addition to a horizontal daisy chain below dual-entry front pocket
  • Compatible With: All Hyperlite Stuff Sacks and Hyperlite Mountain Gear Removeable Hip Belts
  • Front External Pockets: Large dual-entry front pocket provides significant storage as well as streamlined access to smaller items (i.e. tent stakes). Made from durable Dyneema Stretch Mesh
  • Side External Pockets: Oversized Side Pockets for streamlined access to water bottles and other gear on the go
  • Bottom External Pocket: Bottom pocket features durable Dyneema Stretch Mesh, ideal for easy access to snacks or a quick place to store your rain jacket

Specifications


  • Materials: White: DCH50, DCH150, Hardline with Dyneema | Black: DCH150, Hardline with Dyneema
  • Internal Volume: 40L
  • External Volume: 9L
  • Claimed Weight: White: 853g | Black: 914g *Average weight based on size medium
  • Load Capacity: Up to 18.1kg
  • Back Width: 25.4cm
  • Height: 82.6cm
  • Top Circumference 88.9cm
  • Bottom Circumference: 88.9cm

Hyperlite Pack Size Guide


Your torso length, not your height, determines your pack size. We recommend the following to determine yours:

1. Tilt your head slightly forward to locate the bony bump at the base of your neck. (This is your 7th cervical (or C7) vertebra).

2. Using a flexible tape measure, have someone measure starting at that spot and running down along the curve of your spine.

3. Place your hands on your hips so you can feel your iliac crest, which serves as the “shelf” of your pelvic girdle. (It’s the first hard thing you feel when you run your fingers down from the sides of your ribcage.) Position your hands so your thumbs are reaching behind you.

4. Have your friend finish measuring at the point where the tape crosses an imaginary line drawn between your thumbs. This distance is your torso length.

5. If your measurement falls right in between sizes (for example, if you have a 17.0” torso, so you are right on the line between a Small and a Medium), we suggest you choose the larger torso size.

Size Torso
Extra Small < 15"
Small 15.0” - 17.0”
Medium 17.0” - 19.0”
Large 19.0” - 21.0”
Tall 21.0”+

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15252141056

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★★★★★ 5
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Size: Large, Color: (100) White / White / Black
Solid athletic socks at a great price. Not too thick, not too thin. Second time I've purchased them. They last longer than most socks I've used in the past too. Only concern is the sizing. I may be reading the sizing chart wrong, but for my size 13 feet it says XL are the correct sock size. I've ordered Large twice and they're perfect. I would imagine the size Large socks would also fit up to size 14 shoe, but probably need to go with XL if foot is lager than 14.
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Reviewed in the United States on April 12, 2026
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Kevin March
Pawtucket, US
★★★★★ 4
Great product
Size: Large, Color: (035) Steel / White / Black
Comfortable fit perfect
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Reviewed in the United States on March 15, 2026
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Wesley
Carnegie, US
★★★★★ 5
Quality No Show Socks That Are Comfortable and Durable
Size: Large, Color: (100) White / White / Black
These Under Armour no show socks are great for everyday training and casual wear. The cotton blend feels comfortable and they stay in place throughout the day. Getting six pairs in a pack is solid value for a quality brand. They hold up well after multiple washes and the no show style works great with most athletic shoes. A reliable go-to sock.
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Reviewed in the United States on April 30, 2026
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Hanson
Dallas, US
★★★★★ 5
Comfortable
Size: Large, Color: (001) Black / Black / White
I recently picked up a pair of Under Armour socks, and they’ve quickly become my go-to choice for daily wear and workouts. From the first wear, the fit felt snug and supportive without being too tight. The fabric is lightweight yet durable, and it does a great job wicking sweat — keeping my feet dry even during longer runs or intense gym sessions. One of the things I appreciate most is the arch support and cushioning in the right places. It adds just enough padding where I need it, especially under the ball and heel of the foot, which makes a noticeable difference on days when I’m on my feet a lot. The socks also have a nice breathable mesh pattern that improves airflow.
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Reviewed in the United States on January 4, 2026
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LEXI
Massapequa, US
★★★★★ 5
Well designed.
Color: Orange
Beautiful bright orange bag that looks well carrying to a formal setting.
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