The "S" stands for small and these metal rims are perfectly proportioned for smaller faces.

Created with the same attention to detail found in Oakley's bestselling Crosshair sunglasses the Crosshair S features smaller proportions to fit compact faces. The narrow and contoured C-5 alloy frame that gives it a classic aviator look with full-metal wraps around Oakley's proven Plutonite lenses. The significant advantage that the Crosshair S carries over conventional aviator designs is the weight--the Crosshair S Sunglasses are incredibly light and easy to wear while driving sailing flying or strolling out to the Santa Monica Pier. Patented hydrophilic earsocks along the temples help hold the Crosshair S sunglasses firmly on your head--even after the heat kicks up past predicted daytime highs.