Ultra-Sil Nano Daypack Review: An Ultralight Travel Essential
An ultralight, buy-it-for-life travel piece that packs down tiny and easily replaces single-use shopping bags on any trip.
Quick answer
The Ultra-Sil Nano Daypack is an exceptionally lightweight backup bag designed to vanish into your luggage until needed. Weighing just 68g with an 18L capacity, it effectively replaces disposable shopping bags and temporary totes when travelling. Made from Cordura Ultra-Sil recycled nylon, it offers a practical volume for everyday errands on the road. It stands out as a reliable buy-it-for-life travel piece backed by a lifetime warranty.
What the wider world says
In its Gear of the Year coverage, Outside praised the pack's minimal weight and practical storage size, noting that it weighs less than a phone while holding more than a standard shopping trip.
Our take
This backup daypack has replaced every disposable shopping bag on trips for us. Packing neatly into its own integrated pocket, the 18L capacity gives you plenty of room for groceries, extra layers, or market finds. However, carrying comfort has clear limits. Because the Cordura Ultra-Sil fabric is thin and the straps aren't padded, it is not built for sharp gear or heavy loads. For light everyday carry while travelling, the space-saving trade-offs are well worth it.
Who it's for
This is ideal for travellers who want a spare pack that vanishes into checked luggage without adding weight. It suits eco-conscious shoppers looking for an ultralight alternative to single-use bags on urban trips.
Who it isn't for
Skip this bag if you need to carry heavy electronics, structured loads, or sharp gear that could damage thin fabric. It is also not meant for anyone who requires padded shoulder straps for long carries.
What works
- Packs into its own pocket
- Generous 18L capacity weighs only 68g
- Backed by a lifetime warranty
What doesn't
- Thin fabric is vulnerable to sharp gear
- Straps aren't padded
Our reviews are written by combining our own editorial notes and specs with positive coverage already published by independent outlets. We name every source so you can read them in full. We may earn a small commission on the Buy button — it never changes our verdict or ranking.