Almost every type of material you can think of has been used to make knife handles. Materials are often chosen for their durability, comfort, appearance and style.
 

Bone

Bone has been used to make knife handles as long as knives have existed. The bone used for knife handles comes from naturally deceased animals. Bone handles are regularly given a surface texture for a nicer appearance and better grip. They are often dyed a variety of colors. These handles are as much appreciated for their beauty as they are for being traditional.
 

Wood

Wood is another traditional knife handle material. Wood handles are durable and attractive. They can be made from a variety of different woods and have remained a popular choice for everything from heavy-duty fixed blades to stylish folding knives.
                       

Aluminum

Aluminum gives a knife a solid feel without being weighty. It also has a high corrosion resistance. It is a very durable material, however the downside is that the handle can get quite cold when used outside in the winter. Choose a textured aluminum handle to minimize slippage.

G-10

G-10 is a fiberglass resin laminate. Layers of fiberglass cloth are soaked in resin, compressed and then baked, resulting in a material that is tough, hard, lightweight, and strong. This is a very popular handle choice.

FRN (Fiberglass Reinforced Nylon)

FRN is an inexpensive, yet strong material that requires zero maintenance. Most companies that mass produce knives will tend to have at least one FRN handle product in their lineup. Because it can be injection molded into just about any shape, FRN is a cost-effective material that lends well to mass production.

Stag

This material comes from naturally shed deer antlers. It is a popular choice not only because of its beauty, but because it is a natural material. No two stag handle knives will ever be identical.

Stainless Steel

A Stainless Steel handle is strong and resistant to corrosion, however it does add weight to a knife. Stainless Steel is often used in combination with another material like rubber or plastic to improve grip.