Swiss-made from FKM Vulcanized Rubber, Everest Curved End Rubber straps are naturally hypoallergenic, and highly resistant to elements such as UV rays, dust, water, stains, temperature, stretch, tear, and chemicals. The fully embedded robust colors of Everest rubber straps are pantone-matched to complement features of Rolex, Tudor, and Panerai watches and are completely fade-proof. The extreme durability of this premier rubber material is only rivaled by its incredible comfort. Everest Curved End rubber straps are pliable, smooth, odor-free, long-lasting and extremely comfortable. Everest straps are designed to be so comfortable, you may never want to put your bracelet back on.