OLUKAI. 10382-1033. MANOA SLIP ON. CLAY TOFFEE. Manoa Valley isn t all trails and waterfalls it s also home to the University of Hawai i at Manoa. Stroll the beautiful verdant campus in the lightweight casual and sophisticated Manoa Slip-On. Both versatile and laid back our lightweight cotton canvas upper with rich leather accents makes it a comfortable and adaptable slip on perfect for exploring the university s native and exotic flora.