The Park boot comes in a three pack for only slightly more than the cost of three dollar bills. And it is better suited to the task. They take up no appreciable amount of space in my saddle wedge bag. I bought a three pack and that gave me one for each of my bikes plus a spare that stays in a zip lock on a shelf in my garage waiting for the day it needs to replace one in one of my saddle bags. I don't think I have ever needed a boot yet but carrying the Park boot is cheap insurance. The one catastrophic tire failure I had was more than a boot could have covered (a wreck that necessitated replacing the wheel too).