How to Choose a Backpack
Mountainsmith Zerk 40 Pack
$224.95
Members get an est. $22.49 in rewards
Now on its 5th generation of design upgrades, the Mountainsmith Zerk 40 pack just keeps getting better. It's built with ultralight and durable materials that let you go faster, farther on the trail.
- Removable waistbelt
- Side compression straps
- Removable framesheet
- 4 shoulder-strap pockets
- Roll-top closure
- Front cord loops can be configured with included bungee cord
Imported.
View all Mountainsmith Backpacking Packs| Best Use | Backpacking |
|---|---|
| Frame Type | Frameless |
| Ultralight | Yes |
| Gear Capacity (L) | 40 liters |
| Gear Capacity (cu. in.) | 2,380 cubic inches |
| Weight | 1 lb. 9 oz. |
| Fits Torso Length (in.) | 16-24 inches |
| Fits Waist/Hips | 28-48 inches |
| Material(s) | 210-denier EXTREEMA recycled nylon ripstop |
| Reservoir Compatible | Yes |
| Pack Access | Top |
| Number of Exterior Pockets | 9 + main compartment |
| Raincover Included | No |
| Dimensions | 22 x 14 x 10 inches |
| Gender | Unisex |
| Sustainability | Contains recycled materials |
Buying Advice
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Bearded Fungian
Granville, Ohio
Great Ultralight Long Haul Comfort
10 months ago
Absolutely love the shoulder harness, feels like the pack is hugging me. Was worried about carrying 25 lbs load without a hip belt, but the ride and comfort were fantastic with no shoulder fatigue….
Age:45–54
Weight:125–150 lbs.
Height:5'8"
Yes , I recommend this product
Chrispy
Athol ma
5 yrs of ownership
4 months ago
I’ve been on a few over nighters, the frantic seems to brush off any snags with ease. No signs of wear and tear. The mesh pockets still have plenty of elastic tension after stuffing them full many times. My base weight is 23lbs and it disperses the weight very well. I hiked mount Washington with a full pack and it was hardly noticeable. So handy to have all my snacks phone and water easily accessible.
Age:25–34
Weight:175–200 lbs.
Height:6'0"
Yes , I recommend this product
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1 month ago
Anonymous
2 months ago