Bimini Cap Zinc Khaki: Bimini Cap. Adventure feeling, remarkable style and efficient sun protection for head and neck: the Bimini Cap is a highly adjustable accessory ideal for trekking in sunny environments. Feel protected in the desert, the mountains or out in the fields. Attach and detach the protective cape at your convenience! Enjoy mountains and outdoor life to the top with the new mountain caps and hats by BUFF®. high-technology and BUFF® quality blend together in a pure outdoor collection. Created in a variety of shapes, each of the products in our trekking Collection offers a specific set of features, all in BUFF® style. BUFF® trekking products are designed for protection and performance while hiking, trekking or enjoying a walk in the forest.