Shirt by Heart Dagger, Hawaiian print, The bolder, the better, Revere collar, Button placket, Skinny fit, Cut very closely to the body, Exclusive to ASOS. Heart Dagger welcomes ASOS to The House of Heart Dagger with an exclusive tailoring collection. A House which has been built on the very foundations that it strives to uphold and take forward: timeless style, rich fabrics, precision-cut suits and a touch of modern-day dandy.