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Rock + Run

Rock + Run Hipsac

8 reviews   |  

We started making the Rock + Run Hipsac in the workshop behind the Ambleside shop back in 1984. This was the advertising slogan:

“Carry anything from a banana to a brick without bounce.”

Running bum bags were very basic then, most bounced badly and were quite heavy having their routes in the ski industry. Our aim was to design something that was lighter, just big enough for the essential long fell race requirements and crucially, didn’t bounce.

The bounce issue was solved with side compression straps and, we were the first company to use this design feature on a running bum bag. Lowe Alpine followed a couple of years later.

We sold 1000s in the early days and they were the fell running bumbag of choice for several years. Today running pack designs has evolved into a complex range of products some of which are arguably, over designed.

Our motivation in relaunching the Hipsac was to bring some simplicity and freedom back to fell running (although this versatile little product works well for road running and cycling too). Ask yourself how much stuff do you really need to carry and if you can’t fit it into a 4 litre Rock + Run Hipsac, am I carrying too much?

The best product designs are light, simple and functional. We are confident that the Hipsac continues to meet those criteria.


What The Rock+Run Team Say

"I’ve used it on countless wet and grim mountain bike rides, taking no care of it and jamming a lot more stuff in than it's designed for, and it's still going strong. The simplicity is its greatest feature which in turn helps with its stability and comfort. Just your phone and keys for a short run, no problem. Waterproof, pump, tools, a tube, some lunch and your phone and keys for a days mountain biking? It can do it." - Matt


  • Fabric: PU coated ripstop
  • 2 way zip; works in either direction
  • No snag zip cover
  • Over-sized zip pullers for quick access and gloved hands
  • Side Compression straps to eliminate bounce regardless of load/pack size
  • Internal key fob loop with removable R + R accessory biner
  • 25mm Reflective strip for night running
  • 25mm webbing belt with a retaining buckle which means the waist size can be set.
  • Bound internal seams for strength and durability
  • Weight: 90g (excluding accessory carabiner)
Customer Reviews
5.0 Based on 8 reviews
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Allan C.
United Kingdom United Kingdom
Classic bumbag

Great quality item at good price. Fast delivery. Highly recommended.

United Kingdom United Kingdom
Great bit of kit!

I’ve been using it for a few weeks now on runs, and also on my bike and I find it really comfortable and secure. It’s big enough to fit a spare layer, water bottle, phone etc. but it compresses down if you’re carrying less. I’m pleased with the quality; it’s been made really well - and it’s a nice bonus that it’s produced locally!

Richard A.
United Kingdom United Kingdom
Great bit of kit

This bag does everything you need it to. You can fit all the kit you will need for a long fell run and hardly notice that you are carrying it round your waste. It's simple design looks great and works well and as an added the bonus it is made in the UK from recycled materials!

United Kingdom United Kingdom

I have been using this Hipsac on my fell runs the past month and I highly rate it. In the past I've had issues with bumbags not feeling like they fit quite right and are uncomfortable, but I find this Hipsac sits in a really comfortable place and stays there! It's ace. Plus a massive sell for me is that it's made in the UK with help from a local recycled fabrics company (Dirtbags Climbing). I would really recommend this piece of kit!

Colin B.
United Kingdom United Kingdom
Great addition to the kit list.

Absolutely love the Hipsac. It's perfect for long runs with plenty of room for waterproofs, food, soft flask and phone with a handy sewn in Carabiner to keep keys safe. Zero bounce when you run which really was a bonus considering the 4L size. Made from recycled materials. Super impressed.

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