Peak Design Outdoor 45L Backpack - Eclipse

Description

Lightweight internally-framed pack for outdoor and photo carry.
No two adventures are the same—and the Outdoor Backpack 45L is built to adapt to all of them. This lightweight, internally framed pack seamlessly transitions between outdoor gear hauler and high-performance camera bag, without forcing you to choose one identity over the other. Built around Peak Design’s modular Packing Tools ecosystem, it lets you configure protection and organization for anything from clothing, food, and camping gear to a single camera or a full professional photo or video kit—or no camera at all.

A uniquely low-profile, hyper-adjustable harness delivers exceptional comfort across an unusually wide range of body types. Vest-style shoulder straps distribute load across your torso to reduce fatigue, while offering quick-access storage and Capture Camera Clip™ attachment points. A removable, stowable padded hip belt adds support, storage, and additional Capture™ mounting options when loads get heavier.

Packing and access are fast, intuitive, and frustration-free. The Ultra Cinch roll-top provides lightning-fast one-handed access and up to 10.5L of expansion, while a massive rear access panel makes loading easy and creates an ideal layout for securely clipped-in Camera Cubes. Five oversized external Flex Pockets™ swallow bulky items like water bottles, jackets, tripods, or trekking poles while maintaining a clean, streamlined profile. Built from abrasion-resistant, weatherproof Terra Shell™ fabric and finished with integrated external carry systems, the Outdoor Backpack 45L is designed to disappear on your back—and adapt instantly when your plans change.

Fits up to a Large Camera Cube. Designed for gear-heavy single-day adventures, or light overnight use. Want something smaller? Try the Outdoor Backpack 25L or 18L.

Camera Cube Compatible
Throw in a Smedium Peak Design Camera Cube (sized specifically to fit the 25L pack) and instantly convert your bag into the most capable adventure photo bag on the planet. Mounting loops inside the bag let you anchor the cube in place, and the huge rear hatch provides total visibility and access.

Purpose Built For Capture
Attach a Capture Camera Clip and rigidly carry your camera outside your bag, so you never miss a shot. Peak Design Outdoor Backpacks were designed with Capture in mind—dedicated padded/reinforced attachment points create the most secure, comfy camera carry experience of any backpack, ever.

Features:

Access:

Ultra Cinch roll-top design is fast and easy to open/close, exandable, and allows cinching items to the top of your bag

Massive rear panel accessible via a burly #8 weatherproof UltraZip

Harness & Comfort:

Personalized fit & comfort for wide range of body types via innovative hyper-adjustable harness system

Vest-style straps distribute weight better and provide quick-access storage

Load-lifter straps for weight balancing

Shoulder straps feature mesh storage pockets with hidden Capture Clip attachment points (clip sold seperately)

Dual quick-adjusting sternum straps for a more active and ergonomic fit (use both, one, or none)

Top grab handle

Stowable padded Hip Belt with mesh zip pocket (right) and a slip pocket + Capture Clip attachment point (left)

Hip Belt is quick-attaching & adjustable

Resilient 3-part spring steel internal frame

Padded back panels with center airflow channel

Breathable, quick-drying perforated foam padding on back panels, shoulder straps, Hip Belt

Capacity:
34.5L Roll-top down
45L Roll-top extended

Fits:
Internal Carry:

10.5L of expansion (34.5L min to 45L max)

Hydration sleeve (with bladder attachment loop) can be converted to laptop sleeve for up to 16" Macbook Pro

Hydration hose pass-through at top of bag

1x internal zip pocket for storage & protection of important items like passport, permits, etc.

Totally customizable modular internal storage with Peak Design Packing Tools (sold seperately)

Removable key tether can be relocated to different pockets

External Carry:

5 massive external Flex Pockets provide expandable quick-access external storage

Unique Flex Pocket structure maintains a clean silhouette whether bag is full or empty, never looking floppy or disheveled

Store water bottles, hiking poles, tripods, and other long items on the sides

Center Flex Pocket great for bulky things like jackets, doubles as an auxiliary hydration sleeve

2 weatherproof #5 UltraZip pockets for small items (fits an X-small or XX-small Ultralight Packing Cube)

Cord Hook quick-cinching External Carry Cords (2x) let you carry items outside of your bag

Cord Hook elastic Gear Loops (2x) provide an additional fast & simple external carry option

External Carry Cords and Gear Loops made from ultra-strong abrasion-resistant UHMWPE cord

Hidden Cord Rails for mounting Carry Cords, Gear Loops, or other items nearly anywhere outside the bag

Use Carry Cords & Gear Loops for mounting Peak Design Ultralight Packing Cubes (sold separately) for modular external storage

Use Carry Cords & Cord Rails to compress sides of bag for better load distribution

Photo/Video Gear Carry:

Perfectly sized to work with Peak Design Camera Cubes (sold separately)

Configure to carry anything from a single camera/lens to a full pro creative setup

Fits the following Camera Cube (V1 or V2) pack-outs:

1x Large

2x Smedium 

1x Medium + 1x Small

3x Small

Hydration/Laptop Carry:

1x internal hydtration sleeve

1x external hydration sleeve (center Flex Pocket)

internal sleeve fits up to 16" MacBook Pro

Fitment:

Fits torso sizes from 17-20" (43-50cm)

Fits waist sizes from 24-52" (61-132cm)

Dimensions:
External:
Roll-top down: 22.05 x 12.20 x 6.69"
Roll-top extended: 30.71 x 12.20 x 6.69"

Internal: 
Roll-top down: 21.85 x 12.01 x 6.50"
Roll-top extended: 30.51 x 12.01 x 6.50"

Weight:
Without hip belt: 3.42 lbs
With hip belt: 3.97 lbs

Materials:

Ultralight Terra Shell 210D ripstop exterior fabric is weatherproof, 100% recycled, and Bluesign approved

Internal PU coating – exterior rated at 1500mm hydrostatic

PFAS-free water-repellant treatment is a more eco-friendly option to standard DWR

Super-durable #8 and #5 weatherproof UltraZips with abrasion-resistant UHMWPE thread

All cording made from ultra high-strength UHMWPE for extended durability

Blended nylon and UHMWPE stretch mesh pockets

Breathable nylon mesh harness and backpanel

Bluesign certified nylon webbing

Nylon Cord Hook and strap adjustment hardware

High-strength custom aluminum hardware for harness and strap adjustment

Protection & Care:

Primary exterior fabric is ultralight Terra Shell 210D ripstop 100% recycled nylon

Secondary exterior fabric (front and bottom) is Terra Shell 210D ripstop with TPU coating (non-recycled)

PFAS-free water repelling treatment with interior PU coating

Bag is functionally weatherproof and has optional Rain Fly (sold separately) for total waterproofing

Spot clean with warm water and mild detergent, hand-wash only

Fair Trade Certified and Climate Label Certified

FAQ:
What are the differences between the 45L and 25L model?

More capacity & top expansion (11L expansion vs. 3L)

More photo gear capacity (max load is Large Camera Cube vs. Smedium)

More support (internally framed vs. frameless, Hip Belt included vs. optional)

More harness adjustability (has shoulder height adjustment, 25L does not)

5 external Flex Pockets (3 on the smaller bag)

Has internal zip pocket

Has load lifter straps

Manufacturer SKU:
BABP-45-EP-1

In The Box:
Peak Design Outdoor 45L Backpack – Eclipse
2x Cord Hook Gear Loops
2x Cord Hook External Carry Cords
2x Sternum straps
1x Key Tether
1x Hip Belt (left and right straps)
Limited Lifetime Manufacturer Warranty

Note: Camera Cubes are sold separately.