The all-purpose TREK sock from Under Shield® will accompany your muscles throughout their movements. Thanks to its PROLEN® polypropylene composition, the TREK sock will not absorb moisture and will keep the skin dry by wicking sweat to the outside. The special polypropylene fiber will ensure the absence of bacteria on the sock. Lightweight and comfortable, it will lead you to discover nature. TREK features a special massaging texture on the sole of the foot that improves blood microcirculation, ensuring comfort and lightness to the legs during activity. Perforated dorsal area of ​​the foot.