BTR Waterproof Rear Rack Dry Bike Bag. Pannier Bicycle Bag

2 reviews
8 items left
In stock and despatched within 1 working day

Create secure, safe & dry space on your bike with our BTR Waterproof All Weather Bike Rack Dry Bag, designed to keep your valuables secure & dry in all weather conditions. 


  • Waterproof Material - Your contents stay dry without needing an additional rain cover
  • Roll Down & Easy Clip Waterproof Bag Fastenings - no zips or fastenings to let the water seep in - keeps your cargo dry and lets you access inside it fast!
  • Universal Fit - Adjustable straps ensure it attaches whatever the style or size of your rack & it stays put - does not move, shift or budge easily!
  • 3 Straps to attach to your bike rear rack – 2 integrated & 1 as an extra optional security strap
  • Wipe Clean – wipe mud & dirt off your cargo bag easily so it stays looking like new
  • Reflective Detail Stripes on the back - helps you to Be Seen & Be Safe!
  • Light Loop – so you can easily attach your bike rear light to be visible
  • Large Main Storage Area - Pack as much or as little as you like
  • Detachable Shoulder Strap - creates a waterproof bag so you can take your valuables with you when you get off your bike
  • Length 46cm, Width 22.5cm, Height approx. 23cm (when rolled shut)
  • Approx 20 litre capacity
  • Recyclable Cardboard Packaging


Important Attaching Instructions: Ensure the 2 integrated straps are twisted around your rack (see photos) to ensure the bag stays on your rack in transit.


To ensure a 100% Waterproof Bag:  Roll down the bag very tightly and hold in place by clipping in to the side & pulling tight.   


Delivery Information

All items are in stock and ready for immediate shipment unless otherwise specified.

All orders will be despatched the same day if ordered before 2pm (Mon-Fri)

Delivery Costs and Services


Royal Mail 48 - Free- Usually arrives within 2-6 working days

Royal Mail 24 - £1.00- Usually arrives within 1-4 working days

Royal Mail 48 TRACKED - £2.00 - Usually arrives within 2-4 working days

Royal Mail 24 TRACKED - £3.00 - Usually arrives within 1-2 working days

Please note delivery times are not guaranteed as Royal Mail are exceptionally busy at the moment due to Coronavirus


Economy - Usually Arrives 3-7 Days - £3.50

Tracked - Usually Arrives 3-7 Days - £7.50


FREE UK Returns

We offer free returns within 28 days of purchase. 

We offer Free Returns through Royal Mail. Please Contact Us to arrange your return

If you would prefer another service then you can Contact Us to arrange a pre paid returns label for use with Hermes or Collect+

We will charge £3.00 for Hermes and £4.00 for Collect+ and these amounts will be deducted from any refunds

Customer Reviews
5.0 Based on 2 reviews
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  • road bike
  • size
  • access
  • panniers
  • fear
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  • rack
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  • saddle bag
United Kingdom United Kingdom
I recommend this product
Excellent bag, perfect profile on the rack

A really solid bag with a great capacity - it massively outdoes any saddle bag I've used due to its capacity and ease of access. It carries a load in a very stable manner and I've no doubt it'll last a long, long time. The only thing I hadn't anticipated was that it needs to be packed to stay rigid, but it hasn't hindered riding when empty. I'll be using this on my road bike for commuting very regularly once I have work to go to, without any fear of the dreaded heel-strike I get with side panniers!

James T.
United Kingdom United Kingdom
I recommend this product
Ideal bag for a weekend bike packing trip

Very good. I bought this bag to use instead of panniers for a two day mini cycling tour to the Yorkshire Dales. The product is well made, fully waterproof and was just the right size for my needs. Fitted well to my tubus rear rack and I added an extra bungee for total security, but I don’t think it was needed. Recommended.