Do you have general size recommendations based on breeds? Keep in mind these are general guidelines. Sizes vary by breed based on girth and length measurements. For a perfect fit, please see our sizing instruction guide: General Sizing by Breed SMALL DOGS (Extra-Small) Miniatures & Toys, Dachshunds MEDIUM DOGS (Size Small – Medium) Beagles, Small Terriers & Spaniels LARGE DOGS (Sizes Large – Extra-Extra-Large) Large Terriers & Spaniels, Pointers, Retrievers, Shepherds How do you fasten the Fido Float to ensure a snug fit? The Fido Float follows the contours of your dog preventing him from twisting, stepping or swimming out of the vest. Also features adjustable straps to fit comfortably to your dog’s girth. Is there a weight limitation to the Fido Float? No, there is not a weight restriction based on the size of the Fido Float. The vest features three layers of closed-cell foam ensuring buoyancy. If it fits, it floats! Will your Float keep my dog’s head out of the water? The Fido Float features a u-shaped buoyancy collar that sits a little lower on the vest, providing support and comfort for the dog’s neck and head. The design of the buoyancy collar ensures that the dog’s face stays above the water, we use three layers of closed-cell foam – the same material that is used in personal floatation devices for humans. Can the Fido Float be washed? Yes. For best results, we recommend washing it in warm water and line-drying. Sizing Instructions Measure the girth of your dog, just behind his front legs at the deepest point of his chest. Use the chart below to find your dog’s size. Size- Girth X-Small 14” – 18” Small 18” – 22” Medium 22” – 26” Large 26” – 30” X-Large 30” – 37” VERY IMPORTANT: Be sure that the Fido Float fits snuggly around your dog. This product is not recommended for breeds with very short legs. WARNING: Pets using the Fido Float should be under close supervision at all times.