Bag Review: Topeak Mondopack Hydro The Mondopack is a range of big saddle bags available from Topeak. There’s 4 models in the range. The Mondopack (1.2l), the XL (2l), the XL with straps instead of QuickClick and the Hydro (1.7l). The model I have is the Hydro. It’s a 1.7l