The Under Armour Charged Cotton 2.0 No-Show Socks are a popular choice for women's trail running socks on Amazon. These socks are made with a blend of cotton, polyester, and spandex, offering a soft and comfortable feel. The charged cotton fabric dries faster than regular cotton, keeping your feet dry and cool. The seamless toe construction prevents blisters, while the embedded arch support provides a secure fit. These socks are known for their durability and versatility, making them suitable for various trail running conditions.