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Therm-a-Rest - Saros

The three-season Saros sleeping bag is the perfect choice for backcountry trips that start with a questionable weather forecast. Now redesigned with ThermaCapture™ Seams to boost the bag’s warmth without adding bulk, the Saros features eraLoft™ synthetic insulation, which is quick-drying and weather resistant, making it ideal for backpacking and mountaineering in wet weather from spring through fall. SynergyLink™ Connectors also integrate the Saros with your mattress to ensure superior comfort with efficient warmth and the freedom to move as you like for the best night’s rest possible. The Saros is offered in three sizes and designed to fit both men and women. Stuff sack and storage sack included. Pad sold separately.

International Restrictions Apply

Technical specifications & features

Weight SML: 1.47 kg (3 lbs 4 oz)
REG: 1.59 kg (3 lbs 8 oz)
LNG: 1.70 kg (3 lbs 12 oz)
Gender Men's & Unisex
Made in China
Temp Rating º F 20° F
Temp Rating º C -7° C
EN Lower Limit (Men's Rating) 20° F / -7° C
EN Comfort (Women's Rating) 31° F / 0° C
Bag Style Mummy
Seasonal Usage Three Season
Insulation Synthetic shingled eraLoft Poly Hollow Fiber, Thermacapture Seams
Fill Weight SML: 2 lbs 4 oz
REG: 2 lbs 8 oz
LNG: 2 lbs 12 oz
Bag Shell Material 20D Ripstop Polyester w/ DWR
Bag Lining Material 20D Polyester Taffeta, Printed
Bag Length SML: fits users up to 5 ft 6 in
REG: fits users up to 6 ft
LNG: fits users up to 6 ft 6 in
Bag Stuff Size 28 x 43 cm (10 x 17 in.)
Circumference at Chest SML: 58 in
REG: 63 in
LNG: 66 in
Circumference at Hips SML: 58 in
REG: 61 in
LNG: 64 in
Circumference at Foot SML: 44 in
REG: 46 in
LNG: 51 in
Other Features • SynergyLink™ Connectors: Integrate the bag with a mattress for optimal comfort and efficiency; removable for versatility.
• ThermaCapture™ Seams: Trap radiant body heat and retain warmth without adding bulk or weight.
• Zoned Insulation: Maximizes warmth and saves weight while using eraLoft™ synthetic insulation
• Toe-asis™ Foot Warmer Pocket: Rapidly warms cold feet.
• Quilt and Blanket Loops: Customize your sleep system by layering Therm-a-Rest quilts or tech blankets for increased warmth.
• Additional features: Heat-trapping draft collar, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket.
• Stuff sack and storage sack included
Summer Clearance up to 50% off!

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