Cart 0

Spark SP II Sleeping Bag... So small it will fit in the palm of your hand!

  • $26995 USD
  • Save $6700 USD

Spark Series Sleeping Bags... So small it will fit in the palm of your hand!

ULTRA-DRY Down™ protection and warmth in a minimalist package

Using the warmth of 850+ loft 90/10 Premium goose down, the amazing moisture protection of ULTRA-DRY Down™, and a micro-weight 10D Nylon shell and 15D lining, Sea To Summit have created one of the best warmth for weight minimalist sleeping bags available. The Spark is an ultra light bag with many possible uses.

Its balance of size, weight and warmth make it an excellent cooler temperature sleeping bag, especially for weight and space conscious motorcycle tourers. It also works well as a liner bag, slipping inside another sleeping bag to add one or two seasons to its rating.

The ULTRA-DRY Down™ protection makes the Spark an impressive hard-alpine or adventure racing sleeping bag, where down has never before been a viable option, and weight is simply not tolerated.

1/3 Zip Mummy

The secrets of the Spark’s warmth to weight are in the premium quality down, the 1/3 length light-gauge #3 YKK zip and high-performance micro-weight shell and liner fabrics.

The Spark is designed as a close-fitting mummy bag.

The full hood, foot box and short zip maximise fit and warmth while keeping weight and bulk to a minimum.

The Spark I is constructed with sewn-through transverse baffle construction. The Spark II is a hybrid construction with box wall baffles placed over the torso to boost warmth around your core and a sewn-through construction at the legs. A draft tube is sewn over the zip to reduce ‘cold spots’ in the Spark II and III models. The Spark III is constructed entirely from box wall baffles including the foot-box for even heat retention. The head and neck baffles have been enlarged to trap vital warmth and achieve a lower limit EN rating of minus four degrees.



SPII EN scales

A warmer spark for minimalist missions in colder conditions. The SpII has the same streamlined design, with additional proportional fill to concentrate warmth where it’s needed most.

Features: Contoured mummy; 10D nylon shell for minimal weight and bulk; sewn through lateral baffles over legs, box wall baffles over torso; 55/45 fill ratio; differential fill to gradually concentrate warmth over body core; contoured hood with draw-cord; tapered foot-box; 1/3 length YKK #3 side zip; includes lightweight Ultra-Sil® compression bag and a combined storage cell / laundry bag.


• Down: ULTRA-DRY Down™ 850+ Loft 90/10 Premium Goose Down
• Fill weight: Regular 280g | 9.9oz Long 305g | 10.8oz
• Bag weight: Regular 464g | 16.4oz Long 510g | 18oz
• Length / zip options: Regular - left 1/3 length zip Long - left 1/3 length zip
• Season ratings: Summer/Spring/Autumn
• Suggested use: Travel; Adventure racing; cycle touring; Liner bag
• Compressed volume*: 2.9 litres
• Compression bag: 2XS - 3.3L to 1.3L


We Also Recommend