The Biddle Shirt is an American Made, Unisex, long sleeve, hooded, 1/4 Zip hunting garment with a Zippered Pocket, that can be worn as a Base Layer or a Mid-Layer, depending on how hot or cold you run. This Poly/Nylon/Spandex Shirt is durable as hell, breathable, 50 UPF and is available in 5 Color Variations in our Thicket Camo. Why Biddle? The Biddle Mainline is where I took my first steps on the hunting grounds as a baby and is where I cut my teeth on hunting. The Juniper Color Variation was highly requested at the Central Oregon Sportsman's Show, so we created it for the high desert guys and gals.