$100 Gift Certificate to Trizilla. Trizilla.com provides a broad range of Triathlon Equipment - including triathlon bikes, triathlon apparel, triathlon wetsuits and swimwear, triathlon gear and accessories like bike travel cases, hydration systems, energy foods, and much more - to customers around the world via: the Internet, by calling 1-800-504-5392 - 7 days a week; or by visiting our store-front in Pittsburgh, PA.