Sea To Summit Spark Down sleeping bag -18C Beluga

Description

When snow crunches outside and moisture builds up in the tent, you want reliable warmth without unnecessary weight. Sea To Summit Spark Down spací pytel -18C Beluga keeps you comfortably settled even on bitter nights.

Main benefits

A -18 °C lower limit temperature helps you stay warm on winter traverses, bivvies, and high-altitude treks. Warmth is retained thanks to the technical hood, an insulated draft collar by the zipper, and baffles that prevent the down from shifting.

Goose down with 850+ cuin fill power offers an excellent warmth-to-weight ratio. The PFAS-free Ultra-Dry Down treatment reduces moisture absorption and helps it dry faster when condensation occurs.

The mummy cut is ergonomic, saving space while still leaving room for natural movement in the shoulders and knees. The anatomical footbox supports warmth where it’s lost the fastest.

The full-length side zipper makes ventilation and getting into the bag easier. Thanks to its compatibility, it can be zipped together with the Women's Spark model for sleeping two together.

Technical specifications

The EN13537 lower limit temperature is -18 °C.

Insulation is RDS-certified 850+ fill power goose down with a 90/10 down-to-feather ratio and PFAS-free Ultra-Dry Down treatment.

Total weight is 1113 g in size Regular and 1204 g in size Long.

Packed volume is 9.9 l in size Regular and 10.6 l in size Long.

Conclusion

Sea To Summit Spark Down -18C Beluga is a down sleeping bag for moments when you need winter performance while still counting every gram in your pack. It combines lightweight 10D nylon fabrics with a well-thought-out baffle construction for stable loft.

With a full-length YKK zipper and the option to zip it together with the women's version, it fits the kit of solo travelers and couples alike. Available in two lengths, it accommodates heights up to 185 cm and up to 198 cm.

Key features

• Mummy cut with technical hood
• Full box-wall baffles
• Full-length YKK #5 side zipper
• Outer 10D nylon with PFAS-free DWR
• Option to zip together with Women's Spark

EAN: 9327868158133