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
