We get through winter up here in Minnesota with this coat. The fabric is absolutely epic: waterproof, windproof, soft, stretchy, quiet, cozy, breathable and nontoxic. The long ear-covering collar fends of chilling drafts. The WinterPaw has an opening for the collar at the bottom of the neck, and an opening for harnesses on the back! The practically magic magnetic SwiftLock buckle is easy on-and-off, even with mittens on. The reflective trim keeps us out on even the longest winter nights.