Get the best wearing experience just by adding this under your T-shirt! This is a must-have for sports like running and mountain climbing. Once you wear it, you won't want to take it off! I'm selling a Finetrack, the perfect first layer of super-functional underwear, at a bargain price! I've only worn it twice for a short time, and in my opinion, it's in relatively good condition, so it's first-come, first-served! This is a standard series of innerwear, Dry Layer®, designed to be worn under sweat-wicking and quick-drying clothing to reduce sweat-induced chills and stickiness. The Dry Layer® fabric is treated with a strong durable water-repellent finish (100 washes, 80 points or more, JIS-L1092 method), which hardly absorbs water. It is characterized by the fact that there is no significant difference in heat retention when the garment is wet and when it is dry. Therefore, you can keep wearing it without worrying about getting wet. Finetrack's "water-repellent" underwear makes it easy for sweat to move to the upper layer of clothing and keeps your skin dry because the fabric itself does not easily retain water. However, with "hydrophobic" underwear, such as those made of polypropylene, moisture tends to remain on the surface of the fibers that make up the fabric, causing sweat to linger on the skin. Therefore, Skin Mesh® "water-repellent" underwear is more effective in eliminating chills and stickiness. Because the heat retention is stable, you rarely need to change clothes even if you sweat, and excessive layering is also unnecessary. Even if the base layer gets wet, the Dry Layer® remains dry, so you won't feel uncomfortable in a mountain hut or tent, and you can dry wet clothes while wearing them. ■ Excellent durability and water repellency (100 washes, 80 points) ■ Antibacterial and deodorizing ■ Sewing specifications that are gentle on the skin It has been stored, so please understand that there may be storage wrinkles, stains, and the unique print peeling, fluffing, or pilling. I'm selling it at a low price, so it's first-come, first-served! Please bid if you understand that the product has been in someone's hands once, including its condition. Please refrain from bidding if you tend to complain after the transaction is completed, as this can cause trouble. To be environmentally conscious and keep the price low, I will ship it in simple, compact packaging. Recommended for those who like BEAMS, Salomon, Ultimate Direction, MMA. Mountain Martial Arts, The North Face, Arcteryx, Gregory, Hoka One One, Altra, and Norda.