Blazer by Heart Dagger, Some days call for a little extra, Lined with three internal pockets, Shawl lapels, Double-breasted design, Functional pockets, 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.