Technically, it measures the number of cubic inches one ounce of down can fill. Most puffer jackets range from 450 to 900 fill power, with 800+ being premium. Jackets with higher fill power offer ...

Rosie is a freelance writer living in London. She has covered everything from ancient Egyptian temples to exciting medical breakthroughs, but she particularly enjoys writing about wildlife ...

Their paper, published in Nature Energy, summarizes the results of a detailed technical and economic analysis, suggesting that thermal evaporation could be a promising strategy for the scalable ...

New York Post may be compensated and/or receive an affiliate commission if you buy through our links. Featured pricing is subject to change. When temperatures plummet, the best men’s jackets and ...

Engineers can design a thermal management system that meets their requirements by evaluating the tradeoffs of cooling devices. All electronic systems work within upper and lower temperature limits, ...

Case in point: If you’re looking for a winter coat or jacket, The North Face has your back (quite literally). Right now jackets and coats are on sale at the outfitter’s website, from puffy ...

We tested 29 jackets to find the warmest and most packable down options for any adventure. Will is an experienced writer covering gear in running, cycling, style, golf, home goods and furniture ...

After wearing dozens of puffer jackets over the years (in Chicago winters, no less), I've learned that the secret to winter warmth isn't just about maximum fluff, it's about smart design that ...