Sea to Summit Ultra-Sil Dry Bags



The Ultra-Sil® Dry Sack is the ideal dry sack for backpackers who need to protect their belongings from wet weather.

  • Features

    An ultra-lightweight dry bag built in 30D siliconised CORDURA® nylon, our Ultra-Sil Dry Bag is an essential component of any fast and light adventure.

    Keep gear reliably dry and organised inside your pack

    Waterproof, roll-top hypalon closure secured with our Field Repair Buckle for a reliable seal
    Ultralight and super-strong, 30D diamond ripstop siliconised CORDURA® Nylon fabric has a 2000mm hydrostatic head
    bluesign® APPROVED fabric with a C0 non-PFC DWR finish
    Oval base prevents rolling and packs efficiently
    Slippery finish slides into tight spaces in your pack or bag
    Use: backpackers, cycling touring, travellers
    Size Guide

    1 Litre: a phone in a waterproof case (double bagging essential), snacks & wallet
    2 Litre: some snacks, first aid essentials, gloves or beanie
    4 Litre: shell jacket or gloves / beanie, day-hiking essentials
    8 Litre: a two-season or a high-end three-season down sleeping bag, dry clothes for a backpacking trip
    13 Litre: all your clothes for a backpacking trip or a mid-range three-season sleeping bag
    20 Litre: a three-season synthetic sleeping bag plus a Reactor Liner
    35 Litre: use as a full pack liner for overnight (30+ Litre) packs

    Proper Use:
    Any roll-top dry sack must be closed properly to ensure water can’t get in. Begin by folding the Hypalon® strip down first and be sure to have at least three rolls before closing the buckle.
    Avoid contact with sharp objects or subjecting the sack to high abrasion, as this could compromise the waterproof fabric.
    Like all manufacturers of roll-top, fabric dry sacks, Sea to Summit recommends that sensitive electronic devices be ‘double bagged’ (i.e. putting electronics inside one dry sack then placing this inside a second dry sack). For maximum protection, the use of a waterproof hard case should be considered.
    Not intended for situations where dry sack will be submerged under water.

  • Specifications

    3L: 20.7 x 17.1 x 14cm, 5L: 30.8 x 17.1 x 15cm, 8L: 36.8 x 19.1 x 17.2cm, 13L: 43.3 x 22 x 19.6cm, 20L: 47.3 x 26.9 x 23.6cm, 35L: 47.3 x 26.9 x 23.6cm
    3L: 20g, 5L: 23g, 8L: 30g, 13L: 40g, 20L: 50g, 35L: 65g