Slip into spring with new colors on your tifosi eyewear display for a limited time tifosi optics introduces an all new color for the slip for spring 2016 the slip with steel color frame includes vented interchange lenses in clarion blue mirror hydrophobic ac red and clear virtually indestructible grilamid tr 90 nylon frames keep the slip lightweight while adjustable arms and hydrophilic nose and arm pieces ensure a custom no slip fitclarion blue147 ltac red414 ltclear956 lt hyd