Shirt by Heart Dagger, Fresh threads?, Weve got you covered, V-neck, Long sleeves, Regular cut, Fits you just right, Exclusive to ASOS, You heard it here first. 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.