Dashing kebbit fur is obtained from dashing kebbits, which are caught using the Hunter skill. Dashing kebbits can be hunted using a falcon that is obtained from Matthias for 500 coins, requiring level 69 Hunter. Dashing kebbit furs can be brought to the Fancy Dress Shop in the members-only area of south-eastern Varrock, where the shop owner will charge 800 coins to make two furs into a spottier cape. Doing this is a task for the hard Varrock Diary. A spottier cape requires level 66 Hunter to wear; wearing one reduces the wearer's weight by 4.5 kg.
For an exhaustive list of all known sources for this item, see here
- The examine text refers to "go-faster stripes", a humorous British term for the car decoration also known as "racing stripes".