The Overcoat is the classic cold-weather utility jacket, built with sturdy, burly materials to keep up with even the most active dog diving through brush and brambles. The wind- and water-resistant outer fabric sheds light moisture, while the interior recycled polyester fleece lining adds cozy warmth. Side-release buckles on both sides provide easy on/off, and a leash portal allows the Overcoat to be worn over all Ruffwear harnesses (and most other harnesses). ADDITIONAL FEATURES Relaxed Fit with vest coverage and side-release buckles for easy on/off Burly weather- and abrasion-resistant shell fabric Warm, comfortable fleece lining Leash portal on back is compatible with most harnesses Reflective trim for low-light visibility and light loop for attaching The Beacon SIZING XXS - 13-17in (33-43cm) XS - 17-22in (43-56cm) S - 22-27in (56-69cm) M - 27-32in (69-81cm) L - 32-36in (81-91cm) XL - 36-42in (91-107cm) Measurement is around the widest part of the rib cage as shown below.