User comfort:"Seamless" technology for fewer seams. Soft fabric.Moisture management:Fabric wicks away perspiration Ventilated panelsStability:78% elastane content for a thong which stays in placeLightweight:Extra light fabric: the thong weighs only 14g (M/L) WHAT MAKES THIS RUNNING THONG BREATHABLE?: The knit structure of this sports thong is tailored to the areas where you perspire the most (lower back in particular): maximum ventilation for even more comfort. The very fine fabric dries very quickly. HOW TO CHOOSE THE RIGHT SIZE FOR THIS RUNNING THONG?: The stretch fabric of this running thong provides comfort in all sizes. Available in 3 sizes: XS-X M-L and XL-XXL