Kākaha Nia Men。OluKai Kākaha Nia mens slip-on casual shoes in dark navy blue leather with cream midsole and gum rubber outsole. Features a loafer/boat-shoe inspired design, moc-toe stitching, OluKai logo accents, patterned footbed, and comfortable slip-on construction. A dual-density footbed with a gel insert provides soft, cushioned comfort and is removable and washable for easy maintenance. The debossed semi-circle pattern on the Drop-in Heel is inspired by Hawaiian petroglyphs from the Island of Hawaii, symbolizing the journey and connection between the islands