Outlet Unbound 55 Rucksack – Black DCH150 Backpacking Rucksacks

Jump to: Our Verdict / Features / Specifications

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 55L 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.

Our Verdict

The Hyperlite Mountain Gear Unbound 55 Rucksack in Black DCH150 is an ultralight pack with a larger capacity, ideal for long-distance hikers or thru-hikers needing extra room for gear or supplies. Weighing 957g (medium), the Black DCH150 version utilises a 150-denier fabric, offering enhanced durability compared to the DCH50 variant. This makes it well-suited for rugged terrain and more demanding conditions where abrasion resistance is key.

The 55-litre capacity provides plenty of storage for multi-day trips, and the dual-entry stretch mesh front pocket offers quick access to frequently used items, such as snacks or a rain jacket, without needing to access the main compartment. The bottom stash pocket is fantastic for accessing items like hats, gloves, snacks or even rubbish, keeping everything organised and easily accessible. The generously sized side pockets allow for easy water bottle access while on the move, and the roll-top closure ensures your gear is securely packed and streamlined.

The pack features a single aluminium stay frame that transfers weight effectively to the padded hip belt. The foam-padded back panel complements the frame, making long days on the trail more comfortable. The removable compression straps allow you to cinch down the load when the pack isn’t filled, offering customisation depending on your load size.

With a balance of durability and lightweight performance, the Unbound 55 in Black DCH150 is perfect for hikers who need a tough yet ultralight pack for extended trips. It offers excellent storage and comfort.

– 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
• 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
• Shoulder Pocket, Versa, Stuff Sacks, and Pods
• 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: 957g
• Large Weighs: 978g
• Volume – 55L
• External Volume – 9.8L
• Load Capacity – Up to 40 lbs
• Back Width – 10.0″ | 25.4cm
• Height (Fully Unrolled) – 38.5″ | 97.8 cm
• Top Circumference – 40.0″ | 101.6 cm
• Bottom Circumference – 35.0″ | 88.9cm

Material & Construction

• Black: DCH150 Main Body
• White & Black: 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