You've found our D4I equipment. All of these products tie together as a special subsection of Suunto, as they have similar features and a dependable performance level. Consider the Suunto D4I equipment we have here, and if you have any questions let us know. Our product experts will help you figure out if D4I gear is ideal for you, or if another Suunto product would be a better fit. If you're wondering about quality, check out our Suunto Reviews. They're written by customers like you and give useful insights. And remember that a majority of orders over $29.95 get free shipping!