Isn’t a seat/seat post bag a seat post bag? In the midst of a lot of alternatives, you’ll find some well made and practical options from Detours. Detours gave me the opportunity to review a couple of their seat bags, the Guppy and the Bike Midi.
Detours Guppy Seat Bag Review
The Detours Guppy Seat Bag (show in blue and green to the right) is a great commuter/city saddle bag. I’ve put it through a few months a testing on my daily commute. The Guppy is slender and connects tightly up under your seat. I’ll admit that my first perception out of the box was that the straps for connecting the bag to the bike seemed hokey. The seat post strap is a thin rubber strap with a hook and loop closure. I thought that it would either come undone, stretch, or snap with very little use. So far after three months of using it on my daily commute it has held strong and secure. The seat rail attachment consists of two Velcro straps that attach down the sides. These hold securely and offer easier entry than the “wrap around” style you see on many bags. Another plus is you don’t have a long tail to worry about.
One thing about the Guppy is it has very limited space so size accordingly. I have the size medium and had just enough room for a road tube (700 x 32), multi tool, small patch kit, tire levers, and maybe an energy gel. With the gel it was stuffed full. I tried fitting in a mountain tube and I couldn’t get anything else in. Space is limited so this will be a single bike use unless you go up to the large.
The bag does feature a key fob which is nice. The flap zipper allows entry without loosening the straps. And Detours included some reflective materials which is always a plus in my book for the added visibility.
The Guppy does come in three sizes: small (25 cu in), medium (40 cu in), and large (100 cu in).
Detours Bike Midi Seat Bag Review
The Detours Bike Midi has many of the same features as the Guppy but with one major difference. It is a clamshell design featuring a second zipper that offers a 30 cu in expansion. While this is a good idea I haven’t ever come across a time where I suddenly needed extra room in my saddlebag. Detours states the intended use of the Bike Midi as “Commuting, around town, touring, event rides”. Maybe the expansion has application with touring or events?
The Bike Midi has many of the same features as the Guppy including the same mounting straps and reflective piping for increased visibility.
There is plenty of room in the Bike Midi to fit a mountain sized tube, patch kit, multitool, keys, tire levers, and more without using the expansion.
To really test out the mounting straps I took it on several mountain bike rides. While the bag stayed on the bike I wasn’t able to get it snug enough against the seat rails so it did swing around. Yes the Bike Midi isn’t meant for MTB but it could still be a concern on a commuter/city bike.
The Bike Midi comes in one size that expands from 50 cu in to 80 cu in.
Overall I was impressed and pleased with the quality and utility of the Detours seat bags.
Detours makes some great seat post bags, you couldn’t go wrong with them.