Maaji Tech Tank Top in Black. - size S (also in L,M) Maaji Tech Tank Top in Black. - size S (also in L,M) 78% nylon 22% spandex. Hand wash cold. Made in Colombia. MAAJ-WS23. 1993ATT02. Sisters Manuela and Amalia Sierra began pursuing their dream of creating a brand that would enchant us all with its unique inventiveness. The Maaji signature is built upon the unexpected mixture of prints, textures, cutting-edge silhouettes and the sweet, ubiquitous presence of details. The result: a one of a kind product, a real piece of art.