Description
Adapt to any adventure. The Circuit’s semi-tapered-rectangular shape fits you and fits your travelling, camping and backpacking lifestyle. Its extra width allows you to sleep on your side, wrapped in 650+fillpower down and soft-touch fabrics. As the weather warms, the wraparound zipper lets you ventilate the bag from top to bottom, and even open it as a fully flat quilt. Sea to Summit design and quality, non-PFAS recycled materials and ISO-tested performance make this light, packable bag the perfect travel companion.
Features
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Comfort in all conditions: Opens flat for airflow on warm nights or zips closed to lock in warmth when temperatures drop
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Efficient packability: Quality 650+ fillpower Ultra‑Dry Duck Down and lightweight fabrics allow the Circuit to pack down small into the supplied compression sack
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Room to move: Soft touch liner and wider, thermally-efficient shape enhance warmth and comfort, no matter which position you sleep in
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Precise ventilation: Wrap‑around zip lets you fully open the footbox for maximum venting and fine-tune airflow to regulate temperature
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Lightweight breathability: Premium 20D fabric offers perfect next-to-skin comfort night after night after night
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Consistent insulation: Hybrid box‑baffle construction prevents down migration, eliminating cold spots for even warmth
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Easy zipping: YKK #5 coil zipper with anti‑snag plough ensures smooth, jam‑free operation in all conditions for hassle‑free use
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Draft protection: Shaped collar and continuous down-filled draft tubes minimise heat loss and maximise retained warmth
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Verified warmth: ISO 23537 certification confirms dependable insulation performance for rated temperatures
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Internal pocket: Zippered pocket stores essentials like your phone or head torch securely while keeping them insulated from the cold
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Lower impact materials: Constructed from bluesign APPROVED, 100% recycled fabrics designed to go the distance
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Sea to Summit Guarantee: Lifetime warranty
Specifications
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Weight: R: 820g, L: 910g
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Fill weight: R: 411g, L: 469g
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Internal shoulder circumference: R: 145 cm, L: 155 cm
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Internal hip circumference: R: 140 cm, L: 150 cm
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Internal foot circumference: R: 102 cm, L: 106 cm
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Packed dimensions: R: 15.5 x 22.5 x 41cm, L: 15.5 x 22.5 x 41cm
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Recommended user height: R: 185 cm, L: 198 cm
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Compression sack volume/compressed volume: R: 13L, L: 13L
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Temperature Rating: ISO Comfort: 2°C, ISO Limit: -1°C
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Insulation type: FP650GDD
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Material: Shell: 100% Recycled Polyester; Lining: 100% Recycled Polyester; Insulation: FP650 Grey Duck Down 80/20 DWR RDS; Compression Sack: 100% Recycled Nylon; Storage Cell: 100% Recycled Nylon
