he Ultra-Sil Pack Cover ends the debate about whether you should carry one or not. It's a tiny and compelling solution and the medium size weighs less than four ounces. Plus it packs into its own small stuff sack - why wouldn't you carry one?

• Made of 70D polyurethane-coated nylon
• Contoured for modern packs
• All seams are tape sealed
• Compact packed size

• Small: Fits a 30 to 50 liter pack
• Medium: Fits a 50 to 70 liter pack
• Large: Fits a 70 to 95 liter pack

• Small Weight: 3.9 oz / 111 g
• Medium Weight: 4.9 oz / 139 g
• Large Weight: 6.1 oz / 172 g

The origins of Sea to Summit began in 1983 in Perth, Western Australia - a time when lightweight, outdoor products were hard to find in Australia. The original products were developed to outfit an audacious attempt to climb Mt Everest by beginning the ascent at sea level. This gear would need to work at every altitude over several months and be light and durable enough for the 5 month trek. The expedition was a success and so was the gear and the Sea to Summit brand was born.