Reducing weight and bolstering compressibility is the Western Mountaineering HighLite 35 degree sleeping bag&';s goal. For ultra-light specialists, looking to save weight during fast-moving adventures, the 16 ounce, 35-degree HighLite won&';t disappoint. ExtremeLite Ripstop Nylon, sourced for its high thread count, weighs just 0.9 oz per square foot and offers exceptional compressibility Half length one-way #4.5 YKK coil zipper sheds weight DacronA(R) stiffening tape ensures smooth zipping and prevents snags Sewn-thru & baffled box construction reduces weight and bulk allowing this extremely packable bag to heat quickly DWR finish keeps moisture at bay even after multiple washings 3&';&'; loft provides luxurious warmth, you&';ll see the quality of 850-down fill Stuff sack and large volume storage sack included Proudly made in the USA