I have one of the Kremlins made for Kozmo, and I kind of wish Chrome offered some of its features on their normal bags. The strap is the coarser-weave material like the tb2 uses, and instead of having that seatbelt buckle and d-ring arrangement, it just uses regular plastic bits, the combination of which makes it way less prone to slipping and being dropped by people who bang the seatbelt release.