Suit jacket by Heart Dagger, Take that dress code up a level, Shawl lapels, Single-button opening, Check design, Functional pockets, Slim fit, Kinda like you shrunk it in the wash. 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.