|The Core4Element Merino 190 1/4 Zip Top sets the standard for soft, warm and comfortable. Using 100% New Zealand Merino wool in the 190 gram weight (lightweight) it’s still surprisingly durable. With its natural wicking and odor fighting properties, you’re sure to stay comfortable and odor free all day. Plus the added hem length of the shirt ensures it won’t come untucked throughout your hunt as you bend, climb, stretch and crawl to get that perfect shot. The Element Merino Zip T base layer also features extended length the sleeves as well as a generous 9″ zipper for climate control.