Unbound 40 Rucksack – Black DCH150

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UOG TOP PICK: A spacious, durable ultralight pack that provides flexibility and comfort for long-distance hikers, offering excellent storage options and stability. Arguably, it’s the best pack on the market and one of our top picks. 

Hyperlite Mountain Gear says: 

Designed for on-trail backpacking prioritizing mobile storage and accessibility. This 40L pack is great for the on-trail backpacker or all-day thru hiker devouring miles. Incorporating the latest on-trail features for the on-trail backpacker or sunup to sundown thru hiker, this pack prioritizes mobile storage and easy accessibility for the hiker devouring miles.

Large dual-entry front external pocket for quick grabs without needing to dig through everything inside. Generously sized side pockets and a stretch bottom pocket add even more storage options

Low-profile daisy chains allow countless ways to carry external items for different kinds of trips. Remove or add top-side compression straps depending on needs, or shock cord for oddly shaped gear

With the exterior binding, seam bulking is eliminated within the pack, allowing for more efficient taping and improved water resistance

Our Verdict

The Hyperlite Mountain Gear Unbound 40 Rucksack in Black DCH150 is a highly durable ultralight pack designed for serious on-trail miles and the demands of thru-hiking. At 904g (medium), it combines functionality and toughness with its 150-denier fabric, making it ideal for rugged conditions without sacrificing weight. This 40L pack features a dual-entry front pocket for quick access to frequently used gear and a bottom stretch pocket perfect for stashing a rain jacket, snacks, or trash—a thoughtful touch for convenience on the go.

The DCH150 fabric on this model enhances durability, allowing it to handle rough terrains easily. Its spacious side pockets hold water bottles securely and offer easy access while hiking, while the roll-top closure allows for custom compression to maintain a streamlined fit. A single aluminium stay and cushioned hip belt work together to distribute weight evenly, offering stability and comfort over long days.

The pack’s adjustable side compression straps allow you to cinch down lighter loads or add additional gear if needed. Its versatile design also makes it easy to adapt to varying gear requirements without unnecessary bulk—ideal for any ultralight trekker seeking reliability and functionality in a lightweight frame.

– Reviewed by Ultralight Outdoor Gear

Features

• Dual-entry stretch mesh front pockets
• Large and easy-to-reach side pockets for water bottles or gear
• Bottom stash pocket with trash port
• Removable hip belt for swap-out amidst thru-hike weight loss
• Single-stay suspension with sewn-through back panel
• White pack is 50-denier DCH fabric, Black pack is 150-denier
• New 5/8″ hardware minimizes weight without sacrificing durability
• Compatible with All Hyperlite Stuff Sacks and Hyperlite Mountain Gear Removable Hip Belts
• Four 1/4″ vertical daisy chains for attaching extra gear for trip-specific customization, in addition to a horizontal daisy chain below dual-entry front pocket
• Roll-top closure system with removable side compression straps for customizable compression
• Updated removable hip belt provides more cushion and the ability to customize your pack fit. Built using Hardline with Dyneema, dual-density 1/8″ closed cell rigid foam, 1/4″ closed cell foam, and spacer mesh
• Integrated plastic sheet with 1/4″ high-density foam back panel pad
• Grab Loop
• Removable vertical compression straps
• Top Y-strap compression – Designed to secure gear
• Hardline with Dyneema® shoulder straps with 3/8” closed cell foam and spacer mesh
• One removable, contoured aluminum stay
• Updated sternum strap allows for easy adjustments along shoulder strap daisy chains
• Seam tape on all vertical side seams and behind all sewn-on pack features
• Bottom pocket features durable Dyneema Stretch Mesh, ideal for easy access to snacks or a quick place to store your rain jacket
• 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
• Oversized Side Pockets for streamlined access to water bottles and other gear on the go

Specifications

• Medium Weighs: 904g
• Large Weighs: 934g
• Volume – 40L
• External Volume – 9L
• Load Capacity – Up to 40 lbs
• Back Width – 10.0″ | 25.4cm
• Height (Fully Unrolled) – 32.5″ | 82.6cm
• Top Circumference – 35.0″ | 88.9cm
• Bottom Circumference – 35.0″ | 88.9cm

Material & Construction

• Black – DCH150 (Main Body) & DCH150 Lumbar & Bottom Panel, Dyneema Stretch Mesh Front and Bottom Pockets, Hardline with Dyneema Side Pockets

Help & advice:

• The Ultimate Guide to Choosing an Ultralight Rucksack
• Time-Saver Guide to Choosing a Rucksack