Sea to Summit Spark SpI Down Sleeping Bag

Sea to Summit Spark SpI Down Sleeping Bag

Regular Price: £295.00

Special Price £189.00 save 35%

Incl. 20% Tax

Availability: Out of stock

When you need a high performance sleeping bag but don’t want to be weighed down, you should take a look at Sea to Summit's Spark™ Series ultra light down sleeping bags. The Spark Sp I uses 180g of 850+ loft dry treated RDS down in a superlight 10D nylon shell for maximum warmth and minimum size and weight.


Sea to Summit Spark SpI Down Sleeping Bag

When you need a performance sleeping bag but don’t want to be weighed down, you should take a look at Sea to Summit's Spark™ Series ultra light down sleeping bags. Designed to balance as much warmth as warm as possible with minimal packed weight and size, the Spark SpI uses a superlight 10D nylon shell stuffed with180g  RDS 850+ loft, dry-treated premium goose down in a full box baffle construction. A light-gauge #3 YKK zip and high performance 10D Nylon shell and 7D lining fabrics, are combined with a contoured mummy design for efficient insulation.

  • Weight: 340 g
  • Temperature rating: EN 9°c Comfort to 5°c Lower
  • Uses a full box baffle construction to accommodate extra down and reduce cold spots
  • Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
  • Vertical baffles on chest optimises positions of down to prevent it moving during use
  • Full side zip with two sliders provides easy access and extra ventilation options
  • Zipper draft tube, hood and front neck draft collar to prevent warmth being lost when it’s needed


Activities Camping, Travel, Ultralight
Weight 340g
Material 10D & 7D UL Nylon with DWR finish
Brand Sea to Summit
Gender Male
Season Rating 1 Season
Zip Left Zip, Short
Comfort Temperature (°C) 9°C
Limit Temperature (°C) 5°C
Extreme Temperature (°C) -9°C
Shoulder Width 75 cm
Hip Width 65 cm
Foot Width 44 cm
Maximum User Height (cm) 183 cm
Length (cm) 183
Width (cm) 75 cm
Insulation Type Down
Insulation 180g of 850+ Fill Power Ultra-Dry Premium R.D.S. certified 90/10 Goose Down


We try to keep the site updated with products that are in stock and despatch within 1-2 working days (Mon-Fri). Occasionally items ordered may be out of stock. If this should happen we will contact you to let you know when we will be able to despatch your order. Please note that all deliveries are made between 08.00 and 18.00 Monday to Friday and may require a signature.

Free Delivery

Orders are typically despatched with Royal Mail Tracked 48. Please note that this is a guideline only as a different delivery method may be used depending on the size/weight of your order – if you would like any more information on your delivery please contact us. Please note that postal services are dealing with unprecedented numbers of orders just now; there may be a short delay in delivery but we will get your order to you as quickly as we can.

Click and Collect

At checkout, please let us know you'd like to collect your order from our Hathersage store, either in the Comments box on the order page or by emailing us at [email protected], quoting your order number. Click and Collect items are available to pick up Monday – Friday, 9:00 am – 5:00 pm (excluding Bank Holidays), one working day after your order is confirmed.

When your item is ready to collect, you will receive a confirmation email; please either bring a print out of this or show us the email on your phone. You will also need to bring a form of ID which shows the billing address for your order.

Please collect from the back door at the end of Outside's customer car park:

Outside Ltd
Main Street
S32 1BB

Online Only Range

“Online only” products are not available for immediate despatch but you will still normally receive these items within 5-7 days of placing an order. If there are likely to be any further delays we will of course be in touch. These products cannot be purchased in our store.

Next Day Delivery - £5.95

Orders placed BEFORE 2pm Mon-Fri will be despatched the same day, usually with Parcelforce (requiring a signature). Any Next Day orders received after this time will be despatched the following working day. Please note any orders placed AFTER 2 PM on Thursdays will be despatched on Friday, but not delivered until the following week. Next Day isn't possible on Bank Holidays. If you have a mobile number on your account you will receive SMS notifications regarding delivery (UK mainland deliveries only).

Redirection of your order once despatched

We regret to say that we are unable to change the address or postcode on a parcel once it has been despatched. We therefore recommend that you check your delivery address and postcode carefully before completing the order as this will not be checked by us before despatch. We also recommend that orders are sent to an address where someone will be available all day to receive the parcel, e.g. a work address.

European and International Delivery

International service suspended

Unfortunately international orders are temporarily suspended due to the impacts of Coronavirus and Brexit related regulations. We are working to restore normal service when we can - please email [email protected] if you would like an update when we resume international services. Please accept our apologies for any inconvenience.


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