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Not every trip needs the full arctic treatment, but you still want more than a glorified duvet cover once the temperature drops towards freezing. The Circuit -1°C is built for exactly that in-between territory – a semi-tapered-rectangular shape with a wrap-around, anti-snag zipper that lets you open it right out into a quilt on a milder night, or zip up fully when the wind picks up. Continuous down draught tubes and hybrid box baffle construction keep the 650+ fill Ultra-Dry duck down exactly where it should be, so you’re not feeling cold spots at 3am. There’s even an internal zipped pocket for your phone or head torch, so you’re not patting down the whole bag in the dark. Roomy enough to move about in, light enough to actually want to carry, and it comes with its own compression sack so it doesn’t take over your entire pack.
| -1°C Short | -1°C Regular | -1°C Long | -9°C Short | -9°C Regular | -9°C Long | |
|---|---|---|---|---|---|---|
| Bag Series | Circuit | Circuit | Circuit | Circuit | Circuit | Circuit |
| Compressed Vol (ASTM Standard) | 5.1L | 5.4L | 6L | 9L | 9.7L | 10.9L |
| Compression Sack | 13L 40D Nylon | 13L 40D Nylon | 13L 40D Nylon | 20L 40 Denier Nylon | 20L 40D Nylon | 20L 40 Denier Nylon |
| Fill Weight | 384g | 411g | 469g | 664g | 714g | 814g |
| Fits Up To Height | 170cm | 185cm | 198cm | 170cm | 185cm | 198cm |
| Weight | 770g | 820g | 910g | 1080g | 1160g | 1290g |
Sustainability through longevity: Sea to Summit designs and builds gear that is meant to be put to the test, wherever your adventures take you. Sea to Summit guarantee this product against defects in materials or workmanship for the expected lifetime of the product.
What is it that attracts us to the idea of adventure? For Sea to Summit, it’s about freedom and self-reliance – the ability not just to survive, but to thrive in any environment. But although the brand takes its gear seriously, it does so with trademark Aussie humour and blunt, no bullsh*t candour. That’s the way it’s always been, ever since founder Roland Tyson made his first outdoor gear on an old industrial sewing machine in his childhood bedroom back in 1983, at the age of 17. Soon he was designing and manufacturing equipment for other Australian adventurers – and in 1991, he outfitted an unusual first ascent of Everest, in the form of a 1,126 kilometre journey from sea level to the mountain’s 8,848-metre summit. The name Sea to Summit was born.
In 1993, Roland was joined by Penny Sanderson, another Aussie explorer and innovator. Their designs were honed on their adventures, as they spent months climbing, sailing, trekking, overlanding and biking. Nearly thirty years later, Sea to Summit is still 100% Aussie owned and operated, and still putting painstakingly designed gear into the hands of customers worldwide.
Not every trip needs the full arctic treatment, but you still want more than a glorified duvet cover once the temperature drops towards freezing. The Circuit -1°C is built for exactly that in-between territory – a semi-tapered-rectangular shape with a wrap-around, anti-snag zipper that lets you open it right out into a quilt on a milder night, or zip up fully when the wind picks up. Continuous down draught tubes and hybrid box baffle construction keep the 650+ fill Ultra-Dry duck down exactly where it should be, so you’re not feeling cold spots at 3am. There’s even an internal zipped pocket for your phone or head torch, so you’re not patting down the whole bag in the dark. Roomy enough to move about in, light enough to actually want to carry, and it comes with its own compression sack so it doesn’t take over your entire pack.
| -1°C Short | -1°C Regular | -1°C Long | -9°C Short | -9°C Regular | -9°C Long | |
|---|---|---|---|---|---|---|
| Bag Series | Circuit | Circuit | Circuit | Circuit | Circuit | Circuit |
| Compressed Vol (ASTM Standard) | 5.1L | 5.4L | 6L | 9L | 9.7L | 10.9L |
| Compression Sack | 13L 40D Nylon | 13L 40D Nylon | 13L 40D Nylon | 20L 40 Denier Nylon | 20L 40D Nylon | 20L 40 Denier Nylon |
| Fill Weight | 384g | 411g | 469g | 664g | 714g | 814g |
| Fits Up To Height | 170cm | 185cm | 198cm | 170cm | 185cm | 198cm |
| Weight | 770g | 820g | 910g | 1080g | 1160g | 1290g |
Sustainability through longevity: Sea to Summit designs and builds gear that is meant to be put to the test, wherever your adventures take you. Sea to Summit guarantee this product against defects in materials or workmanship for the expected lifetime of the product.
What is it that attracts us to the idea of adventure? For Sea to Summit, it’s about freedom and self-reliance – the ability not just to survive, but to thrive in any environment. But although the brand takes its gear seriously, it does so with trademark Aussie humour and blunt, no bullsh*t candour. That’s the way it’s always been, ever since founder Roland Tyson made his first outdoor gear on an old industrial sewing machine in his childhood bedroom back in 1983, at the age of 17. Soon he was designing and manufacturing equipment for other Australian adventurers – and in 1991, he outfitted an unusual first ascent of Everest, in the form of a 1,126 kilometre journey from sea level to the mountain’s 8,848-metre summit. The name Sea to Summit was born.
In 1993, Roland was joined by Penny Sanderson, another Aussie explorer and innovator. Their designs were honed on their adventures, as they spent months climbing, sailing, trekking, overlanding and biking. Nearly thirty years later, Sea to Summit is still 100% Aussie owned and operated, and still putting painstakingly designed gear into the hands of customers worldwide.
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