Kangaroo leather can be tanned using different processes, and two common methods are vegetable tanning and crust tanning.

Vegetable tanned kangaroo leather is processed using natural tannins, such as tree bark, to create a durable and flexible leather that is free of harmful chemicals. This tanning method produces a leather with a natural, earthy color that will darken over time with exposure to light and use. Vegetable tanned kangaroo leather is often used for high-quality leather goods such as shoes, wallets, and belts.

On the other hand, kangaroo crust leather is a type of leather that has been processed up to the tanning stage, but has not yet been dyed or finished. This leaves the leather with a raw, natural appearance and texture, similar to suede. Kangaroo crust leather is known for its strength, durability, and unique texture. It is often used for high-performance products such as sports equipment, motorcycle apparel, and outdoor gear.

The main difference between vegetable tanned kangaroo leather and kangaroo crust leather is in their appearance and processing. Vegetable tanned leather has a more finished appearance with a smooth and even surface, while crust leather has a raw, unfinished appearance with a more irregular texture. Additionally, vegetable tanned leather is more flexible and supple, making it ideal for products that require a lot of bending and movement, while crust leather is stiffer and more rugged, making it better suited for products that require strength and durability.

Overall, both vegetable tanned and crust tanned kangaroo leather have their unique qualities and are used for different applications, depending on their properties and appearance.