When the skies open up during a walk with your large dog, you need a reliable raincoat that’s both effective and easy to carry. Our team evaluated three top contenders, focusing on adjustability, packability, and clear hoods for visibility and safety. We considered actual owner feedback and manufacturer specs to bring you honest recommendations. All three picks are designed to keep your dog dry without restricting movement. Whether you’re hiking or just popping out for a quick walk, these coats are portable enough to stash in a bag. We’ve chosen them based on fit, durability, and how well they handle real-world weather.