The shell and lining fabrics are the same 70 denier nylon taffeta we use for our sleeping bags.
The zipper is a reversible YKK #5 molded tooth zipper.
These products are impervious to water, keeps you warm even if wet. They will dry very quickly as well.
Machine washable and machine dryable.
Finally Got one ...
Superb, Light, Warm and Well made.
America!
– HAK
Directly comparing the Wiggy vest to a heavyweight fleece vest the Wiggy's vest is: about the same thickness, lighter, much warmer, more durable with its nylon outer layers, and MUCH more breathable. In other words, it's superior in every way to polyester fleece. I typically wear a size XL in men's jackets and ordered a size L (a perfect fit) after consulting with Wiggy's via email. I've used it as an outer layer this past fall when doing yard work in total comfort. I have a nice enough light puffy jacket ("breathable" with "Primaloft Active") that fails to block much wind - the Wiggy's vest underneath makes a great combo that's good down to around 32F with 12-15mph winds in Boston as it blocks enough wind but lets the moisture out. This morning I layered the vest under my ski parka that's good to about 10-12F with a light sweater. My core was nice and toasty despite the outside temperature of -6F.
My vest is very well sewn without a stitch out of place. The vest is "just right" in terms of its warmth and minimal bulk to be very versatile. The hefty YKK zipper is easy to handle with gloves on and will probably outlive me. The only thing I'd change would be the addition of pockets. If you're on the fence about trying something from Wiggy's just order this vest and be prepared to come back to order more gear!
– Brian