a very high-quality silicone

pool chlorine does not cause it to lose its color or main technical characteristics

Maximum ventilation: The design allows for complete ventilation around the head to prevent heat retention

our Backpack is ultralight

Calcetines UltraLight - Black & Silver Grey jammer a very high-quality siliconeLighter. The Ultralight Socks from OTSO have been designed to offer the greatest lightness, breathability, and elasticity on the market. 3 essential features to ensure comfort and performance during your training sessions and competitions. Fresh and dry pies. High temperature and humidity resistant. Prevents overheating and provides air renewal and freshness so you finish your workouts with dry feet. Perfect fit. Very elastic and seamless ergonomic