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Sea to Summit - Ultra-Sil Pack Liner

Availability: Out of stock

Stock #: 5568Z-
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This waterproof pack liner is made of Sea to Summit's amazingly light Ultra-Sil fabric. The shape of the sack is designed to fit the internal contours of a backpack, so the base is oval, rather than round.


  • Ultra-Sil™ Pack Liner opens wide for easy packing when it's inside a pack
  • Unique top closure: extra fabric at the top folds in and velcros in place, then rolls down, creating a more compact closed loop at the top
  • Made of PU coated Siliconized Cordura®
  • Non-wicking Hypalon™ roll-top closure with stiffener at the top for a better seal
  • Fully seam sealed
  • Uses low profile buckles
  • Slippery finish for easy packing
  • Three sizes available to fit different pack volumes
  • Comes assorted in three cool new colors: kiwi green, sky blue and orange orange

Proper Use

  • When packing your pack, make sure that sharp / very hot objects do not come into contact with the UltraSil fabric.
  • When you return from a trip, make sure your UltraSil Pack Liner is completely dry and aired out before being packed for storage.


SizeFits pack sizeWeightMax width x Min width x height
Small 50 Liter - up to 3000 cu in pack 2.6 oz / 74 g 22 in x 18 in x 26 in
Medium 70 Liter - up to 4300 cu in pack 3.4 oz / 98 g 24.5in x 19.5 in x 35 in
Large 90 Liter - up to 5500 cu in pack 4.4 oz / 125 g 26.5 in x 22 in x 47 in

Additional Information

Year Spring 2014