Water resistant backpacks
Most backpacks are very resistant to light rain and, for short periods, also heavier rain. Many materials (such as nylon or polyester) are themselves moderately waterproof.
However, even a waterproof backpack may let water through in heavy or prolonged rain. Particularly sensitive areas, such as zippers and seams, are prone to leaks.
If you need a backpack that keeps your stuff dry, even in heavy rain, you should choose a backpack made of coated material. For example, nylon or polyester coated with polyurethane is quite effective in keeping water out. A multi-layer VX-21 fabric, for example, can be classified as very waterproof.
For hikes and other longer trips, it is often necessary to use a separate rain cover that can be pulled over the backpack.
Jääkäri M (22-30L)

Kantamus 40L
Jääkäri L (40-60L)

Jääkäri S (20-25L)

Bergen, camo
Lunada Gearslinger, black

Remora Gearslinger

Zermatt 29l, black
Hydraulic Dry Pack
TT Essential L MKII
Falcon III Backpack

Gyrfalcon Backpack

Prepared Citizen Deluxe

Pygmy Falcon-II

Zermatt 29l, blue
Zermatt 29l, red
Range Pack MK II
TT Chest Rig MKII M4
Lassen, black
Kantamus 60L
Niukka 20L
TT Modular 30

Tactical Flank Multicam® Daypack
Chicom Chest Rig - Cordura
Kodiak Gearslinger

Prepared Citizen Classic v2.0
Bergen, black
Bergen, olive drab

AGR Gridflux Sling Pack
Emission offsetting
Greener use of materials
Sources from nature
Because it's simple yet important