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Sea to Summit Circuit Down Sleeping Bag
The Sea to Summit Circuit is a comfortable all rounder, perfect for camping, overlanding, and supported treks. A full length zip allows the bag to be opened flat for use as a quilt, and 650+ fill power Ultra-Dry duck down provides reliable, lightweight insulation.
Features
- Opens flat for warm nights or zips closed to lock in warmth.
- 650+ fillpower Ultra‑Dry duck down and lightweight fabrics make for a compact packed size.
- Wider, thermally-efficient shape gives you room to move.
- Wrap‑around zip lets you fully open the footbox for maximum venting and fine-tune airflow to regulate temperature.
- Hybrid box‑baffle construction prevents down migration, eliminating cold spots.
- Easy zipping YKK #5 coil zipper with anti‑snag plough.
- Draft protection collar and continuous down-filled draft tubes minimise heat loss and maximise retained warmth.
- Internal zippered pocket stores small electronics securely and protects them from sub-zero temperatures.
- Constructed from bluesign APPROVED 100% recycled fabrics.
Technical Features
- Non-PFAS, RDS certified 650+ fillpower Ultra‑Dry Down.
- Semi-tapered rectangular fit.
- Left Handed Full-Length YKK#5 with Zipper Plow.
Specifications
| -1°C Short | -1°C Regular | -1°C Long | -9°C Short | -9°C Regular | -9°C Long | |
|---|---|---|---|---|---|---|
| Weight | 770g | 820g | 910g | 1080g | 1160g | 1290g |
| Compression Sack | 13L | 20L | ||||
| Men's Temperature Rating (ISO Limit) | -1°C | -9°C | ||||
| Women's Temperature Rating (ISO Comfort) | 2°C | -5°C | ||||
Select Temperature Rating
Select Size
From $304.35
Sea to Summit Circuit Down Sleeping Bag—
$304.35
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Sea to Summit Circuit is a comfortable all rounder, perfect for camping, overlanding, and supported treks. A full length zip allows the bag to be opened flat for use as a quilt, and 650+ fill power Ultra-Dry duck down provides reliable, lightweight insulation.
Features
- Opens flat for warm nights or zips closed to lock in warmth.
- 650+ fillpower Ultra‑Dry duck down and lightweight fabrics make for a compact packed size.
- Wider, thermally-efficient shape gives you room to move.
- Wrap‑around zip lets you fully open the footbox for maximum venting and fine-tune airflow to regulate temperature.
- Hybrid box‑baffle construction prevents down migration, eliminating cold spots.
- Easy zipping YKK #5 coil zipper with anti‑snag plough.
- Draft protection collar and continuous down-filled draft tubes minimise heat loss and maximise retained warmth.
- Internal zippered pocket stores small electronics securely and protects them from sub-zero temperatures.
- Constructed from bluesign APPROVED 100% recycled fabrics.
Technical Features
- Non-PFAS, RDS certified 650+ fillpower Ultra‑Dry Down.
- Semi-tapered rectangular fit.
- Left Handed Full-Length YKK#5 with Zipper Plow.
Specifications
| -1°C Short | -1°C Regular | -1°C Long | -9°C Short | -9°C Regular | -9°C Long | |
|---|---|---|---|---|---|---|
| Weight | 770g | 820g | 910g | 1080g | 1160g | 1290g |
| Compression Sack | 13L | 20L | ||||
| Men's Temperature Rating (ISO Limit) | -1°C | -9°C | ||||
| Women's Temperature Rating (ISO Comfort) | 2°C | -5°C | ||||
