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Sea to Summit Sea to Summit Spark SpIV Down Sleeping Bag - Long 2021

The sleeping bag Spark SpIV - Long from Sea to Summit is a high-quality down bag, suitable for year-round use and for all conditions in which low weight and compactness is paramount. This models weights only 985 grams and is filled with unique 850+ Ultra-Dry natural down, with a very high level of loft, which makes the bag impressively thermo efficient.

Sea to Summit Spark SpIV Down Sleeping Bag - Long 2021
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Sea to Summit Spark SpIV Down Sleeping Bag - Long 2021

  1. Price: 572.10 505.70 with VAT

    YOU SAVE 11.61%

  • We ship to all EU countries. Delivery time between 3 to 5 working days
  • Order by Phone
    0884 102 910
    0888 644 888

The Sea to Summit Spark Series bags is what you reach for when you need a high performance sleeping bag but don’t want to be weighed down by one.


Ultra-light and technical, the Sea to Summit Spark SPIV - Long down sleeping bag (for people up to 198 cm tall) is an expedition mummy bag designed to keep you warm all-year round and at the same time having minmal packed weight and size.

The secret to the impressive performance is a combination of premium materials and careful design. The RDS 850+ Loft premium goose down, light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics, set the stage for superior performance. These materials are combined with a contoured mummy design for efficient insulation. The sizing provides extra room for sholders and hips without compromising thermal efficiency and a 1/2 zip aids access and ventilation. The down used in the Spark range is ULTRA-DRY Down - water-repellent treatment protects the down from external moisture and condensation from the inside of the bag, virtually eliminating the negative effects moisture has on down. The Spark SpII model also features a zipper draft tube and draft hood collar to prevent heat loss.


The Spark SpIV mummy sleeping bag from Sea to Summit is an excellent choice for active hikers and campers that want the best in terms of quality and technical features. This down bag has minimal pack size and weight and provides excellent insulation even in winter conditions.

  • Superlightweight down sleeping bag - long size
  • Contoured mummy shape for efficient insulation
  • Good of 3-season hiking and camping
  • Zipper draft tube and draft hood collar to prevent heat loss
  • Updated sizing provides extra room for both shoulders and hips while still maintaining insulation efficiency
  • Includes lightweight Ultra-Sil™ Nano compression bag for compact storage
  • Down: ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)
  • Fill weight: 700 g
  • Season ratings: All-year
  • Compressed volume: 7.7 litres
  • Packed dimensions: ø18 x 30 см
  • Recommended User Height: up to 198 cm
  • Bag weight: 985 g
  • Temperature rating: (-8)°C Comfort / (-15)°C Lower limit / (-36)°C Extreme
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Please choose payment plan JetCredit
3months * 175.65 BGN per month
Increasement for the period in % - 4.2
GLP - 25.03%
GPR - 28.11%
Order amount - 258,60 €
Total credit amount - 269,40 €
* The payment amount is with fee included

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