Basics Slim Fit Sprout Green Cotton Herringbone Twill Checks Half Sleeve Shirt for Men SIZE:XXXL The viscose content—roughly 40%—gives it 21BSH47803 The viscose content—roughly 40%—gives it a subtle drape that cotton alone won't deliver which matters in Indian summers when you're moving between air conditioned offices and street level heat The herringbone structure gives the fabric a subtle texture and durability that resists wrinkles better than plain weaves—practical for the Indian climate where you need something that holds up through humidity and repeated washing It also works well layered under our cotton shirts during cooler months