Washed Cotton Poplin Shirt Banana Republic Cotton Poplin Shirt Dress Banana Republic Striped cotton poplin shirt with wide sleeves What Is a Poplin Shirt? Here Is Everything You Need to Know. Classic point collar Short sleeves Button up front closure Chest pocket Cotton poplin construction Contemporary fit Clean minimal design The sacai Poplin Shirt delivers contemporary minimalism with precision Japanese tailoring and innovative construction. Crafted from crisp cotton poplin in clean white, featuring the brand's signature architectural approach to classic shirting. The structured silhouette and contemporary proportions create a refined foundation for modern wardrobes.