#10 Separating Zippers with Metal Sliders. A separating zipper has the end that allows you to take the sides of the zipper apart and put back together. YKK has become a household name because it has offered top quality zippers for over 40 years in the US. Super tough, water, UV, and weather resistant. Great for Boat Canvas, Tents, Sleeping Bags and More. Made in the USA. . These zippers are designed for boat canvas and can also be used for jackets, sleeping bags or a variety of other projects. The #10 zippers are the largest of the zipper chain available and function even when wet or covered in snow. The metal tab has two sides so it can be opened whether you are inside or out.