85%/15% cotton/nylon. Unisex. One size fits all. GI Government Issued style. Made In USA. Thermal boot socks. Keeps your feet warm in extremely cold weather. Great for outdoor activities and could be worn around the house to keep feet warm. HW-Heavy Weight. Comfortable fit.
1 contribute to the mechanical structure of animals, including humans, e.g. keratin in hair and fingernails, and fibrous proteins such as collagen in tendons. 2  enable animals to move, e.g. myosin in muscle.  facilitate transport of smaller molecules around animals' bodies, e.g. haemoglobin.
Proteins A protein is an organic compound that contain carbon, hydrogen, oxygen, nitrogen, and in some cases sulfur and are made up of small molecules called amino acids. There are 20 different amino acids commonly found in the proteins of living things. Proteins are organic compounds that consist of carbon, hydrogen, oxygen, nitrogen, and, in some cases, sulfur. They are made up of repeating units called amino acids. They provide cells with energy, form tissues, speed up chemical reactions throughout the body, and perform many other cellular functions.