LONG ISLAND CITY, N.Y.--Zyloware adds an additional grouping to its Invincilites collection of lightweight eyewear.

"Sigma unifies the brand's expected qualities--thin, contemporary and lightweight eyewear with a modern touch--in a way that makes it both attractive and a pleasure to dispense," said Zyloware president Christopher Shyer, adding that the technology behind Sigma is a compilation of the best drill-mount technologies and designs in one new collection.

Chris Shyer

Sigma, named after the Greek letter used to express summation in math, combines modern, wearable shapes, thin stainless-steel hardware and a plug-pressure mounting system. The striped, transparent Grilamid temples provide a subtle splash of color and feature an adjustable core wire in the tip that allows for a customized fit. In addition, the temples have hinges and fold like traditional frames.

Zyloware's Sigma Invincilites groupings combines barely there designs with easy-to-use plug-pressure mounting.

The six shapes and colors are interchangeable within the collection. They include deep masculine squares, feminine, trendy ovals, soft unisex shapes and colors like purple, silver/red, dark brown and grey mist. Additionally, all Invincilites Beta patterns and shape guides can be used with Sigma chassis.

The frames are priced to the dispenser at $49.95. --Caletha Crawford