Ultra-Sil Pack Liner
PACK SIZE: 50L - up to 3000 cu in
WEIGHT: 3.4 oz | 95 g
WATERPOOF: Waterproof durable roll-top closure with Velcro
SHAPE: Tapered with oval base for easy packing | stowing in your backpack
Shipping & Returns
Our warehouse is actively shipping orders from 8am to 1pm MST Monday through Friday. Most orders ship in one business day, but the transit time can take up to 7 days, depending on your distance from Boulder, Colorado.
2nd Day and Next Day Air orders will ship same day if placed by 1pm MST, Monday-Friday (except holidays).
All orders are eligible for fast and easy returns within 60 days of purchase.
For more details, please check out our Help Center
The Ultra-Sil Pack Liner won the prestigious Backpacker Editors' Choice award in 2006 and this award winner is an excellent solution for keeping contents of your pack dry. It's made of 30D Ultra-Sil CORDURA® brand fabric, making it super lightweight and is an oval shape to fit inside packs easier. The extra wide opening roll-top closure folds in three before being rolled and sealed with the low profile buckles. We've used bright colors to help with visibility when packing and unpacking, and a 50L, 70L and 90L size range to cover all options and pack sizes.
Best UseBackpacking, Hiking & Bike Packing
ClosureWaterproof durable roll-top closure with Velcro
Material(s)Lightweight Ultra-Sil nylon body
ShapeTapered with oval base for easy packing / stowing in your backpack
|50 liter||70 liter||90 liter|
Frequently Asked questions
Does it fulfil any other function?
In campsites with bear cables, a pack liner is great as a bag to hold all 'smellables'
Doesn't a trash compactor bag do the same job?
A trash compactor is an OK temporary solution - until it snags. The UltraSil Pack Liner is sealable and much more durable
When would I use a pack liner rather than a pack cover?
In off-trail or rocky environments, a pack cover may become damaged - a pack liner will not.