This is a variation of our most popular style. It is lightweight and comfortable to wear. This pieces is constructed with the European 4-1 weave using anodized aluminum and EDPM rubber rings. The rings contain no nickel, lead, zinc or latex making them hypoallergenic. If you order this design in the trimmed in secondary color option please include a note in the "special instructions to seller" section telling me what secondary color you wish me to use.