Costasiella Kuroshimae Unisex t-shirt

Tiny, radiant, and full of wonder — the Costasiella kuroshimae Unisex T-Shirt from Hawaiian Vikings’ Reef Life Collection celebrates one of the ocean’s most enchanting mini marvels, affectionately known as the “leaf sheep.” With its emerald-green body speckled in white and tipped with pastel hues, this adorable sea slug embodies harmony, renewal, and the delicate balance of reef life. Feeding on algae and photosynthesizing like a living plant, it reminds us that even the smallest creatures can hold the brightest light.

This unisex tee is more than a nod to nature’s artistry — it’s a symbol of connection and care. Through the Reef Life Collection, young ocean explorers Valkyrie and Freyja are spreading awareness about reef conservation and the fragile beauty of marine ecosystems. Each shirt carries their message of curiosity, respect, and aloha — a celebration of the extraordinary life that flourishes beneath the waves.

Wear your wild. Protect what’s alive. Live Aloha.

• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping

Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.

Size guide