Kelty Sine 35 Degree Sleeping Bag

The Kelty Sine 35 Degree sleeping bag utilizes compressible, weather-resistant DriDown insulation and an innovative venting system to provide excellent warm-weather backpacking performance.

Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel and, despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one inherent weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet, but the 800-fill power DriDown featured in the Sine 20 Degree bag performs differently. Employing a unique, innovative polymer application, DriDown actually creates a hydrophobic finish on each individual plume of down, allowing the insulation to stay dry longer and dry faster if it should become wet. A 20D nylon Ripstop shell further protects the insulation against moisture.

Baffled construction eliminates cold spots, keeping outside air from reaching the interior of the bag. Draft tubes behind the anti-snag zippers and an insulated hood enhance the thermal efficiency of the bag. A uniquely contoured zipper at the top of the bag allows easy entry and employs a two-way design to provide torso venting. A second zipper positioned lower on the bag serves as an additional venting option. An integrated pocket keeps backpacking pillows (not included) tucked beneath your head or allows ounce-counters to stuff clothes into the pocket in place of a pillow.

The Kelty Sine 35 Degree sleeping bag is available in Regular (fits up to 6' 0") and Long (up to 6' 6") lengths. A stuff sack and a mesh storage sack are included.