Oakley's SI Sielo sunglasses offer sophisticated style, comfort, and utility. The frame is made from a combination of Oakley's BiO-Matter and C-5 frame material for lightweight durability. For better comfort, the SI Sielo features a three-point fit, soft touch earsocks, and an Unobtainium nose pad. For enhanced color and contrast everywhere you go, Prizm Lens Technology provides the details.

Features of the Oakley SI Sielo:

• WHEREVER YOU GO = The mixed material frame and seamlessly integrated performance features help cross this style from activities to daily life
• LIGHTWEIGHT AND DURABLE - The BiO-Matter frame front and ultra-lightweight, C-5 metal temples provide durability and all-day comfort. BiO-Matter is made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources)
• NO-SLIP GRIP - The Unobtainium nosepads help provide retention with a no-slip grip and all-day comfort. Propionate temple tips provide additional retention and comfort