If you plan to hike in cold, wet climates, or you’re looking for an option that isn’t down, the Montbell Thermawrap Vest (in men’s and women’s versions) is our favorite synthetic model....

Synthetic insulation is best for damp climates since it retains heat even when wet. It’s also ideal for stop-start activities like hiking or climbing since it keeps you warm when stationary...

Independent synthetic insulated vest reviews by real outdoors people. Reviews, ratings, and price comparisons covering 6 synthetic insulated vests.

When it comes to vest insulation, you have two main options: down or synthetic. Down is known for its superior loft and warmth-to-weight ratio, while synthetic insulation is the best choice for breathability and weather resistance.

Have you ever nearly got hypothermia because your down jacket got wet? The main reason people talk about synthetic insulation is "it stays warm when wet". For context: I live in a cool climate 40F-60F (5C-15C) all year round. Very rarely rains. In 10 years, I think I've only been caught unexpectedly in the rain once.