The Parallel talus base layer pants are high wicking & highly breathable, as well as being lightweight & fast drying. The Talus base layer pants are ideal for keeping warm in a variety of different situations; from skiing to walking on the hills, the mens base layers pants will keep you warm & comfortable. High wicking The Parallel talus base layer pants are made from a high wicking fabric. This means that when you perspire or when moisture hits the fabric it will simply drop off the fabric allowing no moisture to be absorbed by the garment. This keeps you cool & comfortable & ensures that even in high energy activity, your body is kept at a regulated temperature. Highly breathable Highly breathable garments allow air to circulate in order for you to remain comfortable & cool during an active lifestyle. It is important for a base layer garment to be highly breathable as it allows the wicking to take place & helps the garment to be effective in both warm & cold weather. Fast drying Fast drying garments dry quickly due to the structure, composition & the weight of the fabric or a combination of the aforementioned. Also chemical treatments can make a garment quick dry. Fabric composition The Talus base layers have been constructed out of 100% polyester that has been treated with chemical wicking. Please note: this product does not have a fly opening.