Sea to Summit Spark SPII Sleeping Bags nz Close (esc)
Sea to Summit Spark SPII Down Sleeping Bag nz side view Close (esc)

Sea to Summit Spark SP II Down Sleeping Bag

Regular price $649.99
Or 6 payments from $108.33 Laybuy What's this?


A high performance lightweight sleeping bag.

Sea to Summit Logo

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

The Spark™ Series spans everything from an ultralight liner to an expedition weight mid-winter bag.

While the end usage is very different, they reflect a design ethos of matching weather conditions to the lightest bag possible.

Comfort Rating

  • Comfortable: 4C

  • Limit: -2C

  • Extreme: -18C

Weight (regular): 490 grams

  • Contoured mummy shape for efficient insulation

  • 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

  • Vertical box baffles in the torso area accommodates extra down and boosts warmth around the core, vertical baffles on chest optimises positions of down to prevent it moving during use

  • Lower part of the bag uses a sewn through horizontal baffle construction to minimise weight

  • ½ zip with two sliders aids access and allows ventilation from mid-section of bag

  • Draft tube prevents heat loss through the zipper

  • Includes hood draft collar

  • The ULTRA-DRY Down™ protection also makes the Spark™ an impressive hard-alpine or adventure racing bag, where every gram is counted and down has never been a viable option.

  • Ultralight 7D fabrics for minimal weight and packed size RDS 850+

  • Loft Premium Goose ULTRA-DRY Down™ for maximum insulation value

  • Shell: 100% Nylon

  • Lining: 100% Nylon

  • Primary Filling Material: GOOSE DOWN (Min. 90% Down)

  • Stuffsack: 100% Nylon excluding Trims


  • Recommended User Height: up to 183 cm

  • Packed Dimensions: ø13 x 25 cm

  • Volume Compressed: 2.5 L 

  • Compression Sack Volume (Compressed): 3.3 to 1.3 L 

  • Weight: 490 grams

  • Fill Weight: 300 grams

  • Internal Chest Circumference: 150 cm

  • Internal Hip Circumference: 130 cm

  • Internal Foot Circumference: 88 cm


  • Recommended User Height: up to 198 cm

  • Packed Dimensions: ø13 x 25 cm

  • Volume Compressed:  3.5 L 

  • Compression Sack Volume (Compressed): 3.3 to 1.3 L 

  • Weight: 560 grams

  • Fill Weight: 345 grams

  • Internal Chest Circumference: 158 cm

  • Internal Hip Circumference: 138 cm

  • Internal Foot Circumference: 94 cm

🦠Missing Orders & Covid 19 Delivery Guide:

Dear Further Faster Adventure Folk,

Our courier network is experiencing significant delays due to many of their staff members needing to isolate as per the Ministry of Health's guidelines.

As of today, a significant percentage of our courier network is isolating and unable to work, resulting in delivery delays for many of our customers. However, we're doing everything we can to get your orders to you as soon as possible.

If you would like an update of Courier Network Status, please see these links:

As always, thanks for your understanding and support through these challenging times.

From the team at Further Faster


Please use an address that the couriers can leave your item, as they are not holding items for pick up.


For delivery of orders within New Zealand, excluding boats:

  • All local orders over NZD $100 are shipped free using a standard signature required service.
  • All local orders under NZD $100 are charged a flat fee of NZD $8 and are shipped using standard signature required service.
  • We use Post Haste Couriers as our courier service
  • Allow 4 business days for standard South Island shipping and 5 business days for the North Island.
  • Rural Address and PO box numbers please add business 2 days.
  • Once your order has been dispatched you will receive an email with tracking information.
  • Once your order has left the store it is at the mercy of the couriers. Please check your tracking information and contact the couriers if it has not arrived when expected.


  • Allow 4 business days for standard South Island shipping and 5 business days for the North Island.
  • Rural Address and PO Boxes, please add 2 more days.
  • We try our best to get your orders out to you ASAP, however, during our peak times (Christmas, Sale week etc), we may need an extra day to process them.
  • These estimates are for a perfect world when courier companies work on time and natural disasters and pandemics are at bay. Once it has left the shop it is sometimes up to the shipping gods!


  • We can’t change addresses in the system once your order has been placed, however, send an email to or call us in-store and we will endeavour to change the address.
  • Please let us know before order cut off at 1pm daily.


  • We offer an in-store pick up service.
  • This is contactless, please order online and choose Pick-Up.
  • You will be notified when your order is ready for collection.
  • Collection can be made during opening hours at 
    57A Buchan Street


  • Once your order has been shipped you will receive a Shipment Order Email. This will have a link to your tracking details, you can use this link to find the location of your parcel and contact the courier company to see how far away it is.
  • If you have not received a confirmation email within 24hrs, please check your junk box in your email, as some times we need to get in touch with you and emails do happen to end up in there!
  • Alternatively, speak to our order guru 'Bot-Bruce', and he can find the tracking details for you in the chat section of this pop-up. Just ask him, 'Where is my order?' and follow the prompts 🐻.



  • All Australian orders are charged a flat fee of NZD $35 and are shipped using a standard service (not including boats or paddles).  Paddles are NZD $125 for 2 and 4 piece paddles and NZD $195 for 1 piece paddles.
  • All North American orders are charged a flat fee of NZD $90 and are shipped using a standard service (not including boats or paddles).
  • Standard delivery times for international orders can vary from 5 business days to 6 weeks.
  • Once your item has been dispatched you will receive an email with tracking information.
  • International orders do not come with a signature delivery confirmation.
  • Please do not buy products with eggs or bacon, as international customs do not like this and your order may be confiscated at your own cost (no one wants wasted bacon and eggs!)


  • All orders are shipped from our Christchurch store and usually leave the next day. If for some reason we don't have the item you ordered we will notify you as soon as possible and let you know when you can expect delivery. Special order for non stocked items vary however are usually 2-6 weeks.


  • Shipping for white water kayaks starts at $99. Shipping can be arranged for all other boats, kayaks and canoes.
  • Please contact the store for details and cost.


If you'd like to know availability and delivery times for a specific item please contact us and we will get back to you the same day.


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Customer Reviews

Based on 5 reviews
James Lawson
Goes well

Took the SPII out for its first night and it delivered beyond expectations. Super warm for its weight

Bruce Meyer
Spark SPII - Awesome Bag

Bag came with both a normal bag along with a compression bag which is perfect for using in different situations.

Bag entry is large enough to not be awkward to get in for a fully enclosed bag. The inside is spacious enough for a larger guy (got the L size) while also compresses down to a great travel size for fast packing or remote hiking. Super warm and cozy - Totally recommend!

AR Chen
Light and warm

Packs down small and very light, wanted something lighter than my winter bag for lighter three season fast packing, very happy with purchase

David Bridgman
Great lightweight sleeping bag

We bought a pair of Sea to Summit bags recently a Flame 2 woman’s bag and a Spark 2, for myself. The bags are minimalist with a half zip, lightweight materials but with high grade 850 loft goose down. They pack down incredibly small and weigh about 500 grms each. Which is a big saving over our present 1300 grm bags.
They come with a small compression sack and a storage bag. They will be a big saving in weight and space in our backpacks. We look forward to to using them very soon.

Super light, basic on features

I purchased this because I was after a low weight sleeping bag for bikepacking. It is very light and compresses small. Further Faster shipped it quickly, and even with courier delays because of the current Level 3 lockdown it still arrived to Auckland in just a few days.

Why choose us?

Simply The Best

Further Faster hasn’t been on the scene long, but it’s already part of the furniture for the Christchurch outdoors community.

Learn More