Hurley Sig Zane Ululoa shirt. The Hurley Sig Zane Ululoa Men’s Woven Short-sleeve Top is made in collaboration with celebrated Hawaiian designer, Sig Zane. Each year, Sig partners with Hurley on a unique collection modeled after the native flora of the Hawaiian Islands. This print is inspired by the Ulu tree, a symbol of everlasting growth in the Hawaiian culture. Features button front with tonal chest patch pocket on front left. Pointed collar. Short sleeves. Curved hem. 55% cotton/45% rayon. Machine wash. Imported.