The Thermawrap concept has been a pillar within the insulation category at Montbell for many years. They start with 60 grams per square meter of EXCELOFT, their warmest synthetic insulation, and pair the lofty hydrophobic fill with wind resistant DWR-treated 10 denier nylon.

We love all natural goose down as much as the next hiker, but we do recognize that some adventures may require the unique benefits of an ultra-light synthetic puffy. If a quick-drying, synthetic mid layer is what you're after, you can't go wrong with the Thermawrap Classic.

• Outer shell and lining materials are sewn together, keeping insulation in place while decreasing weight
• Water repellent zipper
• Elastic cuffs prevent cold air from entering
• Pocket hem adjuster allows for cinching the hem from inside your pocket
• 4 pockets (2 zippered hand pockets, 2 internal drop-in pockets)
• Stuff sack included