Impulse is a versatile companion for a wide range of ambitious day tours, from all-day trail runs to alpine mountaineering and day hiking. The zippered main compartment opens wide at the top for easy access to clothing and larger items. 

- Inside are four mesh pockets: one zippered pocket at the top, one pouch on each side of the bottom and a hydration pouch along the foam back.
- Tube ports on each side and elastic keepers on each shoulder strap accommodate left or right hydration-tube orientation .
- A small outer zippered pocket and three stretch mesh pouches provide plenty of quick-access external stowage.
- A lightly padded, double-layer base maintains lower load stability and enhances durability.
- External daisy chains and EXPED's exclusive Tool Blade combine to securely transport ice tools and other hardware. - A removable compression cord with toggle adjustment compresses the load when necessary.
- Thermo-formed back panel and padded, contoured shoulder straps are comfortable and quick drying. Impulse 15 is sold with a lightweight waist strap; 20 and 30 liter versions with removeable, low-profile, padded hip belts, each with a small, zippered stretch pocket. 

Volume:  20 l
Size: (closed): 52×27 ×18 cm
Weight: 880 g
Backlength: One size
Hipbelt range: 62 - 134 cm
Body:
210 D Robic HD Ripstop Nylon Carbonate PU, 2'500 mm water column
Oeko-Tex 100 certified
PFC-free

Frame:
thermo formed back
removable crosslinked PE foam board