Spark SpII Sleeping Bag

Our 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.

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.

Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.

• 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

Spark SpIII Sleeping Bag

Our 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.

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.

Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.

• Contoured mummy shape for efficient insulation
• Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
• 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

Flame FmIV Women’s Sleeping Bag

Engineered for women to provide extra warmth where needed, our Flame™ is what you reach for when you need a high performance sleeping bag but don’t want to be weighed down by one.

The Flame™ 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.

Ultra-light and technical, our Flame™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.

The women’s specific fit is wider at the hip and narrower at the shoulder and we’ve added extra down overall for increased warmth.

• Women’s specific contoured mummy shape for efficient insulation
• Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
• 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

Specifications

Shell 100% Nylon, Lining: 100% Nylon, Primary Filling Material: GOOSE Down
Comfort: -10C | 15F,
Lower Limit: -17C | 1F,
Extreme: -38C | -36F

Spark SpIV Sleeping Bag

Our 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.

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.

Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.

• Contoured mummy shape for efficient insulation
• Expedition mummy bag sizing provides extra space for layered clothing or extra wriggle room
• 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

Comfort: -8C | 18F,
Lower Limit: -15C | 5F,
Extreme: -36C | -33F

REGULAR
MAX USER HEIGHT: up to 183 CM
COMPRESSION SACK VOLUME (COMPRESSED): Small (10 to 3.3) L
WEIGHT: 880 G
FILL WEIGHT: 620 G
INTERNAL CHEST CIRCUMFERENCE: 155 CM
INTERNAL HIP CIRCUMFERENCE: 135 CM
INTERNAL FOOT CIRCUMFERENCE: 94 CM

Long

Max User Height: 198cm

Internal Chest Circumference:  162cm

SEA TO SUMMIT FLAME FMII 

Spark SpI Sleeping Bag

Our 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.

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.

Ultra-light and technical, our Spark™ Series bags are designed to keep you as warm as possible while minimising packed weight and size.

• Contoured mummy shape for efficient insulation
• Ideal for mid-summer fast hikes or adventure racing
• Doubles as a liner to significantly boost the warmth of a second bag
• 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

Designed as a lightweight and packable summer quilt, the versatile 750+ Loft ULTRA-DRY Down Cinder CdI also integrates with all Sea to Summit sleeping bags (from 2021) to boost the warmth of your complete sleep system.

When the mercury climbs, treat your Cinder like a traditional quilt and allow your feet and arms freedom to cool you down. When the temperature drops, cinch the draw cords to snuggly wrap around your shoulders and create a footbox while securing the quilt to your mat with the simple strap and press-stud system to reduce heat loss.

Need extra versatility and warmth? The QuiltLock system secures your Cinder quilt to any Sea to Summit sleeping bag for another layer of insulating down that won’t slide off in the night.

The premium 750+ Loft down is super warm and compressible and the ULTRA-DRY water-repellent treatment protects its loft from external moisture and condensation from inside the bag. The ULTRA-DRY Down retains over 60% more loft and absorbs 30% less moisture than untreated down and it dries 60% faster.

To help combat moisture and condensation, the Cinder uses 20D Nylon waterproof/breathable NanoShell fabric.

For backcountry enthusiasts not so enthusiastic about a restrictive sleeping bag, our adaptable Cinder quilts’ multiple configurations provide versatility for a wide range of temperatures and environments.

Features

• Adaptable set-up to suit variable conditions and environments
• Freedom to move and ventilate when it's warm
• Versatile press stud and adjustable strap system secures quilt to your mat, keeping heat loss to a minimum
• Conveniently located press studs allow quilt to be secured around neck to help trap in warmth
• Connect two quilts together to make a double,Cinder, Glow and/or Ember Quilts
• QuiltLock System connects your Cinder quilt to any Sea to Summit sleeping bag for extra warmth and to prevent the quilt from sliding off
• 20D Nylon waterproof/breathable NanoShell fabric protects against wind and moisture
• Soft touch 20D Nylon lining fabric is lightweight and breathable

Specifications:

Regular:

Weight: 480g
Dimensions: 150 x 205cm
Packed Dimensions: 35 x 15 x 15cm

Long:

Weight: 580g
Dimensions: 170 x 220cm
Packed Dimensions:40 x 18 x 18cm

Altitude AtII Women’s Sleeping Bag

Engineered for women to provide extra warmth where needed, be prepared for the unpredictable with our adaptable Altitude™ Series bags.

Offering the perfect backpacking balance of comfort vs weight, our Altitude™ Series sleeping bags have more space than traditional mummy bags, yet still provide the thermal efficiency you need when exploring above the tree-line.

If it’s warmth you’re after, close all the zips, pull the cord locks tight to drag everything in, and relax in luxurious comfort. The generous allocation of high quality 750+ Loft down ensures great insulation, while the oversized draft tubes prevents your body heat escaping. The panelled footbox and 3-dimensional hood make sure you’re not compressing the down when you’re trying to stay warm. The Altitude™ also features extra down overall and THERMOLITE® panels under the foot area, to help keep heels and ankles warmer.

• Designed for extreme cold and high-altitude conditions

• Women’s specific tapered rectangular shape for perfect balance of space and adaptable warmth
• Free-Flow half left side, full length 2 way #5 YKK right side and separate foot zips for freedom of movement, increased ventilation and dual-use as a quilt
• Large internal security pocket
• Zip Coupling: This bag is designed to pair with another
• Includes lightweight Ultra-Sil™ compression bag and storage cell

Ascent AcI Sleeping Bag

Be prepared for the unpredictable with our adaptable Ascent™ Series bags.

Light, warm, comfortable and most importantly, adaptable. Offering the perfect backpacking balance of comfort vs weight, our Ascent™ Series sleeping bags have more space than traditional mummy bags, yet still provides the thermal efficiency you need when exploring above the tree-line.

The Ascent™ is our sleeping bag of choice for most adventures.

If it’s warmth you’re after, close all the zips, pull the cord locks tight to drag everything in, and relax in luxurious comfort. The generous allocation of high quality 750+ Loft down ensures great insulation, while the oversized draft tubes prevents your body heat escaping. The panelled footbox and 3-dimensional hood make sure you’re not compressing the down when you’re trying to stay warm.

• Tapered rectangular shape for perfect balance of space and adaptable warmth
• Free-Flow half right side, full length two-way #5 YKK left side and separate foot zips for freedom of movement, increased ventilation and dual-use as a quilt
• Large internal security pocket with flat zipper
• Zip Coupling: This bag is designed to pair with another
• Includes lightweight Ultra-Sil™ compression bag and storage cell

Designed as an easy-care durable summer quilt, the versatile synthetic Glow GwI also integrates with all Sea to Summit sleeping bags (from 2021) to boost the warmth of your complete sleep system. When the mercury climbs, treat your Glow like a traditional quilt and allow your feet and arms freedom to cool you down. When the temperature drops, cinch the draw cord tight to create a footbox and secure the quilt to your mat with the simple strap and press-stud system to reduce heat loss. Need extra versatility and warmth? The QuiltLock system secures your Glow quilt to any Sea to Summit sleeping bag for a layer of synthetic insulation that won’t slide off in the night. When combined with a down bag, your Glow quilt will help protect it from internal condensation and external moisture. Synthetic insulation excels in wet conditions and by using continuous filament insulation, the Glow quilt provides excellent long-term thermal performance and durability. Offering superior recovery after compression, it retains more loft and warmth over time. The DWR treated 30D Nylon shell and 20D Nylon lining means it’s lightweight and packable—it’s also easy-care and machine washable. For backcountry enthusiasts not so enthusiastic about a restrictive sleeping bag, the adaptable Glow quilts’ multiple configurations provide easy-care versatility for a wide range of temperatures and environments.

800+ loft DWR treated duck down is our premium choice – a must for the gram counters. This high-lofting white duck down delivers luxurious warmth at a fine feathery weight. This down has excellent compactability and loft recovery.

Down is the best insulation for lightweight sleeping bags due to its loft, compressibility and durability. However, this golden fibre has a failing: its ability to insulate drastically decreases when it is wet.

The solution is now here – DWR DOWN. This down has been selected to meet our rigorous standards, with a durable water-repellent (DWR) treatment applied after the cleaning and sorting process.
The benefits of DWR DOWN are:

• It absorbs less water in damp conditions
• It retains higher loft (insulation) in damp conditions
• It dries faster

Bungle sleeping bags are filled with 800+ loft DWR Down for greater weight saving.

SEA TO SUMMIT FLAME FMI 

Thermolink

This bonded fibre weighs less and packs down smaller than competing synthetic fills, making our bags lighter and more compact while maintaining comfort and durability. The secret is in the manufacturing process: thousands of hollow fibres are sandwiched between a high-density thermal barrier and a fine, soft, body-conforming radiant retention layer to form one continuous sheet of Thermolink fibre. As it is one continuous layer, there aren’t any gaps for heat to escape, leading to better performance than traditional baffled fills.

Sac sleeping bags are made using lightweight and highly breathable 20-denier Vapour Vent fabric. This strong, compressible and highly breathable fabric uses a tight weave that keeps the insulation in but allows water vapour to escape. This reduces the possibility of clamminess and allows the insulation to loft fully for maximum performance.

SEA TO SUMMIT FLAME FM0 

Product information "Sea to Summit Glow GwII Quilt" The new synthetic fiber quilt from Sea to summit is our tip if you don't want to use down products. With a comfort range of +2°, the quilt can be used from spring to autumn. The weight is okay at around 900g, but the pack size is larger than comparable down quilts.

• Weight: 900g (reg), 1030g (lg)
• Pack size: volume approx. 7L, 40x20cm
• Temperature range: +2° comfort, -4° limit (use an insulated sleeping pad!)
• Material: filling: 100% polyester, shell: 30D nylon, DWR impregnation (moisture-resistant)
• Belt system can be fixed to the mat, foot area can be closed
• with compression stuff sack
• Dark blue

Spark Sp0 Sleeping Bag

Our 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.

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.