Quick Overview

Waterproof seatpost bag can easily be moved from one bike to another.

Versatile and lightweight: one simple tool free manoeuvre is all it takes to fix or remove the waterproof Seatpost-Bag made of PU coated nylon and Cordura®. The integrated mounting allows quick change from bike to bike. The roll closure with elastics ensures safe closing of the bag and allows tight packing. The Seatpost-Bag Medium, with 4 litres capacity, might even replace a backpack. It also protects the rider from splashes and dirt.


  • Individually adjustable ratchet closure compatible with seat post diameters from 25.4 mm to 34.9 mm (not suitable for carbon fibre posts)
  • 2 interal mesh pockets and external elastic top strap for fixing additional equipment
  • 3M Scotchlite reflector
  • Fixing for rear light
  • Maximum carry weight size M = 2.5 kg
  • Height:14 cm 
  • Width:35 cm 
  • Depth:15 cm 
  • Weight:425 g
  • Volume:4 l
  • Fabric:PS36C/PS21R
  • WA Update Dec 2022: Delays of several weeks due to extreme weather and rail closure. Express Post is your fastest option.

    Standard/Free shipping to major capitals takes 2-5 business days, with occasional delays due to Covid.

    Order before 11am - we usually ship the same business day!

    Choose Express Post for priority packing and faster shipping.