The 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?
Features
- Made of 30D Ultra-Sil fabric constructed from CORDURA® yarns for durable, waterproof performance.
- This pack cover does not use seam construction to ensure that it is completely waterproof
- Packaged in its own mini siliconized Nylon stuff sack that remains attached to the cover so it can't get lost
- Keeper strap (sizes S-L) pulls the pack cover tight across the pack harness
- Sold in four sizes to fit daypacks up to large backpacks
Size Guide
- XX-Small: Fits a 10 to 15-litre pack
- X-Small: Fits a 15 to 30-litre pack
- Small: Fits a 30 to 50-litre pack
- Medium: Fits a 50 to 70-litre pack
- Large: Fits a 70 to 95-litre pack
Pro Tip:If you stow any gear externally on your pack, we would recommend buying an Ultra-Sil Pack Cover a size larger than normal.
Tech specs
-
Best UseUltralight Backpacking
-
Material(s)30 denier Ultra-Sil™ nylon
-
WaterproofYes
| XS | S | M | L | |
|---|---|---|---|---|
| Pack Size | 15-30L | 30-50L | 50-70L | 70-95L |
| Packed Size | 10 x 6 cm | 10.5 x 7 cm | 10.5 x 7.5 cm | 12 x 7.5 cm |
| Weight | 57 g | 85 g | 113 g | 130 g |
- Large cover suits 70–95L packs
- 30D Ultra-Sil nylon keeps it light
- Cordura yarns stand up to scrub
- Seam free body reduces leak points
- Attached stuff sack for pocket storage
- Brand: SEA TO SUMMIT
- Model: Ultra-Sil Pack Cover
- Size: Large
- Colour: Blue
- Pack capacity fit: 70–95 litres
- Best use: Ultralight backpacking
- Material: 30 denier Ultra-Sil nylon
- Fabric base yarn: CORDURA yarns
- Waterproof: Yes
- Packed size (Large): 12 x 7.5 cm
- Weight (Large): 130 g
- Keeper strap on sizes S–L
- Integrated mini siliconised nylon stuff sack
- Available sizes: XXS, XS, S, M, L
- 1 x SEA TO SUMMIT Ultra-Sil Pack Cover Large (fits 70–95 L packs)
- 1 x Attached mini siliconised nylon stuff sack
| SKU | APCSILLBL |
|---|---|
| Barcode # | 9327868010332 |
| Brand | SEA TO SUMMIT |
| Shipping Weight | 0.1300kg |
| Shipping Width | 0.075m |
| Shipping Height | 0.075m |
| Shipping Length | 0.120m |
The 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?
Features
- Made of 30D Ultra-Sil fabric constructed from CORDURA® yarns for durable, waterproof performance.
- This pack cover does not use seam construction to ensure that it is completely waterproof
- Packaged in its own mini siliconized Nylon stuff sack that remains attached to the cover so it can't get lost
- Keeper strap (sizes S-L) pulls the pack cover tight across the pack harness
- Sold in four sizes to fit daypacks up to large backpacks
Size Guide
- XX-Small: Fits a 10 to 15-litre pack
- X-Small: Fits a 15 to 30-litre pack
- Small: Fits a 30 to 50-litre pack
- Medium: Fits a 50 to 70-litre pack
- Large: Fits a 70 to 95-litre pack
Pro Tip:If you stow any gear externally on your pack, we would recommend buying an Ultra-Sil Pack Cover a size larger than normal.
Tech specs
-
Best UseUltralight Backpacking
-
Material(s)30 denier Ultra-Sil™ nylon
-
WaterproofYes
| XS | S | M | L | |
|---|---|---|---|---|
| Pack Size | 15-30L | 30-50L | 50-70L | 70-95L |
| Packed Size | 10 x 6 cm | 10.5 x 7 cm | 10.5 x 7.5 cm | 12 x 7.5 cm |
| Weight | 57 g | 85 g | 113 g | 130 g |
- Large cover suits 70–95L packs
- 30D Ultra-Sil nylon keeps it light
- Cordura yarns stand up to scrub
- Seam free body reduces leak points
- Attached stuff sack for pocket storage
- Brand: SEA TO SUMMIT
- Model: Ultra-Sil Pack Cover
- Size: Large
- Colour: Blue
- Pack capacity fit: 70–95 litres
- Best use: Ultralight backpacking
- Material: 30 denier Ultra-Sil nylon
- Fabric base yarn: CORDURA yarns
- Waterproof: Yes
- Packed size (Large): 12 x 7.5 cm
- Weight (Large): 130 g
- Keeper strap on sizes S–L
- Integrated mini siliconised nylon stuff sack
- Available sizes: XXS, XS, S, M, L
- 1 x SEA TO SUMMIT Ultra-Sil Pack Cover Large (fits 70–95 L packs)
- 1 x Attached mini siliconised nylon stuff sack
| SKU | APCSILLBL |
|---|---|
| Barcode # | 9327868010332 |
| Brand | SEA TO SUMMIT |
| Shipping Weight | 0.1300kg |
| Shipping Width | 0.075m |
| Shipping Height | 0.075m |
| Shipping Length | 0.120m |

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