Sea to Summit Ultra-Sil™ Pack Liner (various colours)

Internal waterproofing for backpacks where external covers snag, fail to fit, or simply aren't an option.

The Sea to Summit Ultra-Sil Pack Liner is designed to protect pack contents from water ingress in wet conditions. Its oval base and tapered profile follow the internal contours of a backpack for a secure, rattle-free fit. Built from PU-coated siliconized Cordura®, it is suited to bushcraft, expedition, and field use across a range of pack sizes.

Features

• PU-coated siliconized Cordura® construction with slippery finish for easy packing
• Waterproof hypalon roll-top closure — does not wick moisture
• Double-stitched and tape-sealed waterproof seams
• Top closure folds and hooks into place before rolling for a compact seal
• Oval base and tapered shape follow internal backpack contours
• Low-profile buckles and wide opening for easy loading

Technical Specifications

• Material: PU-coated siliconized Cordura®
• Capacity: S – 50 L, M – 70 L, L – 90 L
• Dimensions: S – 49×16×79 cm, M – 50×20×89 cm, L – 56×25×122 cm
• Weight: S – 74 g, M – 98 g, L – 126 g