The Dog & Bone Wetsuit weighs in at 1.6 ounces and the thickness of my iPhone 6 went from 0.27-inch to just 0.47-inch, which is very slim given the degree of protection offered.

TL;DR: Keep your four-legged friend warm and cozy with this 5V Rechargeable Waterproof Heated Dog Vest, on sale for 73% off. As of Jan. 20, get it for just $31.95.