Sea To Summit Spark SPIII Sleeping Bag

Ultra-Light And Technical, Our Spark™ Series Bags Are Designed To Keep You As Warm As Possible While Minimising Packed Weight And Size.

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.

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, And That Mummy Design Is Then Tweaked For Each Model To Best Fit The Use Scenario.

Our 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. All Sea To Summit Down Sleeping Bags Use Responsible Down Standard (Rds) Certified Down. The Ultradry 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.


Features:

- Ultralight 7d And 10d Fabrics For Minimal Weight And Packed Size
- Rds 850+ Loft Premium Goose Ultra-Dry Down™ For Maximum Insulation Value
- Contoured Mummy Shape For Comfort And Efficient Insulation
- Vertical Chest Baffles Prevent Down Migration And Cold Spots
- 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
- Includes Lightweight Ultra-Sil™ Nano Compression Bag For Compact Storage


Specifications:

- Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: Goose Down (Min. 90% Down), Stuffsack: 100% Nylon Excluding Trims
- Recommended User Height:Up To 198 Cm
- Compression Sack Volume (Compressed): L
- Weight:745 G
- Fill Weight:485 G
- Internal Chest Circumference: 162 Cm
- Internal Hip Circumference:142 Cm
- Internal Foot Circumference:100 Cm


Technologies:

DIFFERENTIAL CUT SHELL:
- Down insulates best when it is uncompressed and fully lofted. To help the down loft correctly we use a differential cut shell and lining. - The top shell of all Sea to Summit sleeping bags is cut larger than the lining. This creates space in between for the down to loft fully. - In the bottom of the bag we use a reverse differential cut. By increasing the size of the lining relative to the shell, down lofts up to fill the voids around your body, torso, legs and the small of your back. Trapping heat close to the skin is essential for efficient warm sleeping.

DOWN LOFT, FILL POWER:
- Down is the soft plumage of birds that lives under the feathers. A single piece of down is called a plume. The majority of down used in clothing and bedding comes from geese and ducks. Down is one of the best warmth to weight insulators available. It is not only warmer for weight, but compresses much smaller and is much more durable than most synthetic fill equivalents.
- Loft is the volume for a given weight of down. High loft down is warmer for a given weight than low loft down. The most common measure of loft is fill power, a term which is often used interchangeably with loft. Fill power is the volume, in cubic inches, that an ounce of down will fill. Thus, one ounce of 650 loft down will fill 650in3.
- Composition refers to the percentage of down versus feathers in a batch of down. In Australian and US regulation, 90/10 means that 90% of the batch is down plumes, the other 10% is small feathers. The higher this ratio, the lighter, softer and more compressible a sleeping bag will be. It also means there are fewer feather quills or spines to poke through the stitching or fabric of a bag.

RESPONSIBLE DOWN STANDARDS:
- Sea to Summit Sleeping bags use down that has been sourced and certified by the Responsible Down Standard (RDS). The RDS is helping to shift the entire down and feather industry towards more humane animal rearing and handling practices. Overseen by the industry leading Textile Exchange, the RDS requires independent, third party assessments of all aspects of animal rearing and handling throughout the entire supply chain. By only using down that meets the audited requirements of the RDS we can have confidence that each phase of the collection process has been completed with the welfare and ethical treatment of waterfowl in mind. To find out more information about how the RDS is improving animal welfare during down collection, please visit responsibledown.

UL 10 DENIER NYLON:
- UL 10 Denier Nylon is our lightest weight sleeping bag fabric used in our Spark sleeping bags to keep them ultra lightweight and with maximum compressibility

ULTRA-DRY DOWN:
- ULTRA-DRY Down is a permanent* Nano-level water repellent polymer treatment applied to our high loft, high quality down. The Nano-thin treatment vastly improves our downs reaction to water without effecting its weight or loft performance. ULTRA-DRY Down retains over 60% more loft and absorbs 30% less moisture when compared with untreated down. Sea to Summit sleeping bags dry out 60% faster than bags with untreated down.
- The Nano-level treatment also inhibits bacterial and microbial growth, which makes Sea to Summit sleeping bags more hygienic and improves their lifespan.

With Sea to summit Spark SPIII Sleeping Bag you can enjoy your activities without complications. If you like the brand Sea to summit and their outdoor products, visit the categories of the outdoor products that you are looking for and place your order as soon as possible and receive it in a few days. Our aim at trekkinn is to make high-quality products accessible to all with an efficient worldwide delivery service.