Ultra-Sil Day Pack
award winnerShipping & Returns
Free standard delivery in Australia for orders over $49.99*.
For all other orders under $49.99, we charge a flat fee of $10.00 for standard delivery in Australia. We do not ship to an address outside of Australia.
The standard delivery time is 10 Business Days depending on your location. For more details, check out our Shipping Policy.
If you are not entirely satisfied with your order, you may be entitled to a refund of the purchase price of the Product. For more details, please check out our Refund Policy.
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Description
Our award-winning Ultra-Sil Day Pack is a minimalist backpack that has incredible strength-to-weight performance and packs down to the size of a tennis ball. The 30D siliconised CORDURA® fabric and reinforcing bar-tacks at stress points enable it to withstand loads many times its own weight.
With a 20L capacity, it's perfect for a summit pack, carrying groceries when on foot or on a bike, or as an extra traveling tote. The tiny packed size also easily fits onto your key ring, in a jacket pocket or a purse.
With non-padded shoulder straps, our load limit recommendation for maximum comfort is 15 lbs / 7 Kg.
Features
- Ultra-Sil 30D siliconized CORDURA® fabric for strength and durability
- Reinforced shoulder straps for increased carrying comfort
- Packs into an attached stuff sack that includes a handy carabiner
- Packs down small so it easily fits in pockets, purses or luggage
- Perfect as a lightweight backup or travel bag
TECHNICAL FEATURES

Cordura® is a special type of nylon yarn used for its strength. These yarns are used in two different product areas:
- In the siliconized Ultra-Sil fabrics used in Ultra-Sil Dry Sacks, Stuff Sacks, Compression Sacks, Pack Covers, Travelling Light and Travel Essentials products
- In the foot section of the extremely tough eVent® Quagmire Gaiters.
Tech specs
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Best UseSummit Pack, Groceries, Travel
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FabricSiliconized Cordura fabric for strength and durability
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SpecialAttachment point for a bike light
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WaterproofWater resistant – please see FAQs above
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Zip OptionsTwo-way zipper closure
Frequently Asked questions
Going to last?
With correct care, yes. Backpacker Magazine staff have used the same pack for over five years – but contact with sharp objects or abrasive surfaces can damage the fabric in a short space of time.
Waterproof?
No. It is only water-resistant. Even though the pack is made of a waterproof material, water can enter through the seams (which are not sealed) and the zipper. A few minutes of light rain would not be a problem, but a downpour would result in the contents of the pack getting wet.
What is the difference between Ultra-Sil and Ultra-Sil Nano Day Packs?
The Ultra-Sil Day Pack is made from 30D Ultra-Sil Cordura nylon and includes adjustable shoulder straps and a daisy-chain webbing loop. It has a two-way zipper closure with a generous opening and weighs 2.5oz/72g.
The Ultra-Sil Nano Day Pack is made from 15D Ultra-Sil and packs down to the size of an egg. It weighs 1oz/30g. With an asymmetrical zipper, lightweight fabric, and slightly smaller capacity (18L vs 20L), the Nano is a great option for those that need to save on weight and space.