BLACK COMBO. NOT ELIGIBLE FOR EXTRA DISCOUNT OR COUPON CODE. Brixton Bunker Paradise Button Up Shirt. This is your vacay every day, 5-star button-up. Designed with 100% viscose that drapes beautifully, it has a relaxed fit that falls just right. With a classic camp collar that offers easy polish, you can wear it closed with trousers or open at the pool. Straight hem with side vents. 100% Viscose. Dry clean. Imported.