Cotton blend. Hand wash cold. Open front. Rib knit edges. Side seam pockets. ESSE-WK17. KERSTEN. The Belgium-based hubby and wife team, Esfan Eghtessadi and Inge Onsea, transformed a women's t-shirt line into a ready-to-wear collection which quickly took Europe by storm. Their success prompted a men's collection in 2004. Now the line is known for everything from trendy dresses to quirky tops and tees. It's clear that Essentiel has mastered blending that special European feel, with stateside flare to create covet-worthy pieces.