T-shirt by Heart Dagger, Add it to your everyday line-up, Crew neck, Short sleeves, Heart Dagger logo, Slim fit, A narrow cut to the sleeves and chest. 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.