The Sea to Summit Ultra-Sil Nano Travel Day Pack (MSRP: $29.95, 1 oz / 30g) is an 18 L summiting daypack that can be compressed to the size of an egg and tucked into a multiday pack for peak-bagging on longer trips.
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Highlights18 L capacityMSRP: $29.95weight: 1 oz / 30 gcompresses to roughly egg size10 lb (5 kg) recommended load capacity15 denier siliconized nylon fabricasymmetrical zipper to reduce pack sizebar-tacks at stress points for added strength
An ultralight summiting pack is a piece of kit that has appealed to me for a while. I’m not usually a big peak bagger on multi-day trips, but the occasion has come up when one would be useful.
I knew I’d be spending a day camped as part of my Corona Ridge adventure, and I wanted to explore the upper reaches of Corona Canyon. The smallest and lightest pocket pack (in one of my preferred brands) is the Sea to Summit Ultra-Sil Nano Day Pack. I was instinctively drawn to this pack’s little lime-sized package. It’s light, compact, and I could picture tossing it into my kit on any trip where I might need a summiting pack. I made the purchase and took it out into the field on a summer excursion deep into a canyon off the North Saskatchewan River’s southern banks. This review is based on my experiences on that trip (and a few others throughout 2020)
This is a first look at new gear that recently entered our review pipeline, and hasn"t yet been subjected to rigorous field use. Learn more about the types of product reviews we publish.
The Sea to Summit Ultra-Sil Nano Travel Day Pack impressed me with how truly tiny it packed and how much space there was in the pack once unfurled.
I could easily fit two down insulating layers (a vest and a sleeved hoodie), a rain/wind shell, a hard-sided Nalgene 1 L bottle, a pair of gloves, a toque (Candian for beanie hat), a Buff, a sun hat, small bottle of sunscreen, my mirrorless camera, and room for snacks.
I will note here I wear kid’s size large or women’s extra small so my clothes aren’t as voluminous as those found in many packs.
The Sea to Summit Ultra-Sil Nano Travel Day Pack is a one-compartment pack with a relatively small opening. The more I stuff into the Nano, the less likely it is that I can find anything. I will also note the zipper is light-duty – similar to what you would find on a windbreaker – so stuff with caution my friends.
Sea to Summit made the most of the opening by making it a diagonal slash opening across the top of the pack.
Fit and Comfort
Putting on my well-stuffed Sea to Summit Ultra-Sil Nano Travel Day Pack Nano is comfortable enough, but not something I want to wear for longer than about an hour or two continuously (which is also about as long as most mid-trip peak bags take.) As with any frameless pack, care in packing is crucial.
I’ve also loaned it to other hiking partners while I was off taking photos or doing other things and the rather formless pack fits men about 6 ft (2 m) tall about like it fits me – not perfectly, but functionally.
The Sea to Summit Ultra-Sil Nano Day Pack is handy to have around, but I do find it uncomfortable after an hour or two. This isn’t unexpected for what is essentially a formless sack of nylon.
I modify the shoulder straps by adding an elastic clip cord (the pad-strap from my Enlightened Equipment Revelation quilt). I also will note that the fabric is light duty and I did manage to puncture a small hole in the ripstop fabric. The hole was easily patched with some Tenacious Tape on the inside and outside of the pack fabric.
I took the Sea to Summit Ultra-Sil Nano Day Pack on my Corona Creek adventure and (a few others throughout 2020) and ten-out-of-ten would bring it again. I’ve started throwing it in my pack if any kind of potential off-piste adventure is expected.
Learn More: Sea to Summit Ultra-Sil Nano Travel Day Pack
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By Emylene VanderVelden
Emylene is a Canadian from Alberta. Those who know her best call her an adventurer, a gypsy, a cowgirl, a philosopher and a wild child. Known for her independent streak, wide eyed enthusiasm and restless anticipation of life, she navigates personally and professionally with tenacity, integrity and a wide open mind. Love of the outdoors has been passed down in her family for generations. Outdoor passion includes a love for farming and agriculture, raising and caring for animals, and outdoor activities including: backpacking, cross country skiing, snowshoeing, canoeing, kayaking and horsemanship. For Emylene, life is about fearless navigation of challenge, encouraging those around her and seeing the best and most beautiful in each situation she finds herself in. You can read more about here adventures on her blog.