Peak Design BTR-45-SG-1 outdoor backpack 45 L Grey

A versatile, durable, and beautiful carry-on travel backpack driven by a simple truth: no two trips are the same. Features top, side, front and rear access via intuitively placed weatherproof zips. Meets international carry-on size requirements, but expands to be a 45L gear-hauler and collapses to be a 35L day bag, making it unmatched for 1-bag travel. Tons of internal and external pockets, plus a main cavity that’s divisible via a zippered mesh sleeve. Tuck-away shoulder straps and hip belt use unique magnetic catches to stay magically in-place when checking your bag. 360-degree grab handles. Cleverly concealed external carry straps. All packed within a sleek, weatherproof 100% recycled 400D nylon canvas shell.

Bundle & Save: Buy the Travel Backpack and any 2 or more Packing Tools and a 10% discount will be auto-applied at checkout. Packing Tools provide endlessly customizable organization and protection of clothes, shoes, toiletries, cords, adapters, and photo/video gear.

REIMAGINED ORGANIZATION

Front organizational panel four-zippered mesh pockets for small and flat items. Rigid sidewalls and full-back panel load for organized packing. Zippered dividing panel separates bag into two compartments or merge into one.

IMPRESSIVE CAPACITY

Meets international max carry-on standards in default 35L configuration.
Dual expansion zips give 10L extra volume for 45L max storage.

Compression snaps reduce bag to 30L for use as a day bag.

Dual external carry straps stowe away in magnetic external pouch.

Expand the side pockets to store water bottles, tripods.

DUAL SIDE ACCESS

Dual side zippers for instant camera and item access.

POCKETS FOR DAYS

Top and side soft-lined, zippered stash pockets conveniently stash items.

LAPTOP CARRY

Quick tablet and laptop access using the main back zip.

PERFECT FORM

Perfect Form: Our bag holds its shape and sits upright, packed or empty.

SYNCS WITH ACCESSORIES

Camera cubes, sold separately, fit snugly inside. Complete access of photography, drone, or video gear.

UNPARALLELED PROTECTION

400D weatherproof material. 100% recycled nylon canvas shell and DWR impregnated, PU-coated interior equals zero rainwater.

Oversized #10 front and #8 back zippers are weatherproof and lockable. Rugged 900D weatherproof bottom liner.

Ultra-light padded foam provides security, structure, and aesthetic cleanliness throughout. Protected luggage tag holder included.