Regular down takes on water and is very difficult to dry; through the DriDown proprietary process, each individual down plume is treated with a hydrophobic finish. With the down now resistant to water, the insulation maintains its loft and stays dry 7 times longer than untreated down. It also performs better in high humidity than regular down, and in case it accidentally gets wet, it will dry out faster, too. Lightweight yet durable 30-denier micro-ripstop polyester shell and comfortable, moisture-wicking polyester lining warms up fast. Baffle construction keeps down from migrating, eliminating cold spots. Full-length 2-way, double sliding zipper allows easy venting; locking slider is backed by wide, antisnag binding tape. Snag-free zipper tracks prevent the dreaded stuck zipper by creating a barrier between the lining and the zipper track. Fully insulated draft tube backing the zipper keeps body heat in and cold air out. Ergonomic, nonrestrictive hood cradles your head in warmth; hood features differentiated drawcords that make fit adjustments easy, even in the dark. Roomy, ergonomically shaped footbox enhances comfort and warmth of feet. Sierra Designs Zissou +15°F comes with stuff sack and storage bag. EN Lower Limit 18 degrees Fahrenheit. EN Comfort 29 degrees Fahrenheit. Weight 2 lbs. Fill Weight 35. Sleeping Bag Shape Mummy. Fits Up To in. Stuff Sack Size 8 x 16 inches. Stuff Sack Volume 13 liter. Weight – Metric 1.30 kilograms. The item “Sierra Designs Zissou Plus 700 Fill 15 Degree Mummy-Style Sleeping Bag Long” is in sale since Thursday, April 27, 2017. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “thruhikernation” and is located in Boulder, Colorado. This item can be shipped to United States.