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Item #: 331904357

This sturdy Sea to Summit Ultra Sil Pack Liner is designed to protect your packed gear through some of the harshest of elements. Neither rain nor snow will dampen the supplies you have stowed away in your Ultra Sil Pack Liner. With its durable construction and unique top closure, moisture will be blocked from reaching the valuable items stored inside.


  • Distinctive, roll-top closure fastens securely and protects your gear from moisture
  • Constructed of durable PU coated Siliconized Cordura
  • Stitched with sturdy, fully-sealed seams
  • Backpacker-friendly, low-profile buckles
  • Friction-resistant finish allows for easy packing
  • Opens wide for easy packing
  • Available in three sizes


  • Height 66 cm. / 26 in.
  • Weight 74 g. / 2.6 oz.
  • 50L