This Versalite is the warmest in our ExtremeLite(TM)series! If your planning a thru hike, doing the JMT or just going hiking, fishing or hunting then the UltraLite is a great choice. The VersaLite sports 20 oz. of high lofting 850+ goose down for 6" of loft and a temperature rating of 10Adeg. A "Super" Full Collar will seal in the warmth and protect you from the cold. 62" of shoulder girth is roomy enough and the total weight is only 2 lbs. Eastside Sports is owned and operated by former(for now) thru hikers. The owners are PCT SOBOs from 2015. Employees are hikers, climbers, boulderers and former backcountry rangers from several different national parks. Past employees who are still around but now retired hiked the PCT in the 1970s and 1980s. Features Full-length #5 YKK Zipper Full Down Collar 6" Loft, 10Adeg F 5 1/4" Spacing/Continuous Baffles 20 oz. Down Fill 62"/39"Shoulder/Foot Girth 2 lbs. Total Weight Tech Specs SHAPE SIZE (FT/IN) RATING LOFT (IN) INSIDE GIRTH SHDR/HIP/FOOT (IN) FILL WT. TOTAL WT. STUFF SIZE (IN) MUMMY (W/ FULL COLLAR) 5&';6" 10F 6.5" 62"/53"/39" 18OZ 1LB 14OZ 8"X15" MUMMY (W/ FULL COLLAR) 6&';0" 10F 6.5" 62"/53"/39" 20OZ 2LB 8"X15" MUMMY (W/ FULL COLLAR) 6&';6" 10F 6.5" 63"/54"/39" 22OZ 2LB 2OZ 8"X15"