I use this product when it's snowing and very cold out. Zippers work well, the jacket is extremely warm. The ripstop has worked thus far- I don't have any leaks or rips. It compresses super small to be a warm layer to throw on at the top of a ski tour. Definitely fully functional warm puffy. It's great for travel as well as it's so light and compressible. Plus at night around town when it's dumping I throw the Sonata on all the time.