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.
Key Points Summary. 1  Proteins are made up of amino acids which determine the types of bonding and interaction they can take part in. 2  Amino acids form non-covalent bonds between themselves and other molecules, such as Hydrogen bonds, charge-charge interactions, Van der Waals forces or hydrophobic interactions.