We compared two under-seat bike saddle bags: the ROCKBROS Bike Saddle Bag and the CCKOLE Waterproof Bike Saddle Bag.
What we looked at
Size, fabric, water resistance, mounting, and price.
The verdict
If you want an ultra-mini 0.5L pack with a hook-and-loop strap and a tail light mount, the ROCKBROS is the pick at £13.59. If you would rather save £3.71 and get a waterproof zipper and a reflective surface, the CCKOLE is the alternative, at £9.88.

A £13.59 0.5L mini bag with a quick-release buckle and a tail light mount.

A £9.88 waterproof 600D Oxford bag with a reflective surface.
ROCKBROS Bike Saddle Bag 0.5L with Hook and Loop Strap and Tail Light Mount — Ultra-Mini Pick
Intended for: Marketed as an ultra-mini 0.5L under-seat bike bag in high-density nylon with a quick-release buckle and a hook and loop strap, a tail light mount, reflective elements, and room for items such as an energy gel, keys or a mini pump; the listing warns it is very small and not suitable for big items. Carries 4.2 stars from 3.2K ratings on this listing.
What we liked
- Quick-release buckle plus hook and loop strap for a firm fit
- Tail light mount on the back
- Reflective elements and high-density nylon
- Very light, with little added weight
Worth knowing
- Costs £3.71 more than the CCKOLE on these listings
- Listing says it is not suitable for big items
Best for
- Buyers who carry only a few small essentials
- Anyone who wants a tail light mount
- Those who want a minimal, light bag
Not ideal for
- Buyers who need to carry more
- Anyone who wants a stated waterproof zipper
CCKOLE Waterproof Reflective Bike Saddle Bag — Best Value
Intended for: Marketed as a bike saddle bag in 600D Oxford cloth and PU described as waterproof and scratch resistant, with a waterproof zipper, a reflective surface, multi-level storage with an elastic pocket, removable velcro fitting without tools, and compatibility with most bicycles. Carries 4.4 stars from 878 ratings on this listing.
What we liked
- Cheaper than the ROCKBROS on these listings, at £9.88
- Waterproof zipper and 600D Oxford fabric per the listing
- Reflective surface for visibility
- Multi-level storage with an elastic pocket
Worth knowing
- Much smaller review history than the ROCKBROS (878 vs 3.2K ratings)
- No tail light mount stated on the listing
Best for
- Buyers who want the lower price
- Anyone who rides in changeable weather
- Those who want a bit more organisation inside
Not ideal for
- Buyers who want a mount for a tail light
- Anyone who wants the larger review history



