Arena Cob General Purpose
The Arena Cob General Purpose is a general purpose saddle with HART, designed for cobs and wide horses. Use it for flatwork, jumping and riding out on a horse with a broad build. Arena Wide saddles are now called Arena Cob.
You get a balanced, supported position for schooling, popping a few fences or a long ride out. Front and rear Flexiblocs and a padded knee insert help keep your leg where it should be.
Your horse can stay as comfortable as you are as their shape changes with the seasons and their work. It is made from European leather with a technical, wipe-clean lining.
HART: Horse and Rider Technology
Horse and Rider Technology is the epitome of comfort with the added practicality of being fully adjustable, so you and your horse are presentation perfect throughout your journey.
- Elastiflex tree: flexes with your horse's stride, so their back can swing and move naturally, and helps protect the spine from concussive forces.
- EASY-CHANGE Fit Solution: you or your saddle fitter can change the width of the Elastiflex tree with the EASY-CHANGE Gullet System WIDE (1XW to 4XW), and change the depth of the panel to alter the balance with the EASY-CHANGE Riser System.
- CAIR Cushion System: air cushions stay in contact with your horse's moving back muscles, spreading pressure evenly and absorbing shock so your horse can move freely.
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Size guide
The chart shows the measurements of the Arena Cob General Purpose in each seat size.
Finding your seat size
- Measure the saddle you ride in now, from the saddle nail to the center of the cantle, and compare it with the chart.
- Sitting in the saddle, you should have about a hand's width between your seat and the cantle.
Checking the fit
- Saddle up without a pad, with the girth done up as if you were about to ride. Only do this if your horse is happy with it.
- Stand your horse square on level ground.
- The saddle nail should sit about three fingers behind the edge of your horse's shoulder blade.
- Your local Arena stockist or saddle fitter can help you check the fit. Find a stockist
Measurements are a guide only. They are rounded to the nearest 0.5 cm and then converted to inches, and the organic shape of saddlery means small differences between pieces are normal.

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I have WIDE gullets from my Arena Wide saddle. Will they fit?
Yes. Arena Wide saddles are now called Arena Cob, and they still use the EASY-CHANGE Gullet System WIDE (1XW to 4XW), so the WIDE gullets you already have will fit.Will standard EASY-CHANGE gullets fit the Arena Cob General Purpose?
No. It takes WIDE plates only, from 1XW to 4XW. Standard plates can distort the tree and are not covered by the warranty.What gullet does the Arena Cob General Purpose come with?
It is fitted with a 2XW (lilac) gullet. The EASY-CHANGE Gullet System WIDE: Complete Kit gives you the other WIDE sizes, and a saddle fitter can help you choose the right one. -
Approximate weight: 6.2 kg/13.7 lb. Weights vary a little by size and options. Fitted with a 2XW (lilac) gullet from the EASY-CHANGE Gullet System WIDE, and it takes WIDE gullets only. The EASY-CHANGE Gullet System WIDE: Complete Kit, EASY-CHANGE Riser System: Standard Pack and EASY-CHANGE Gullet Gauge are available separately, as are a girth and stirrup leathers. Fit is about comfort, balance and how your horse moves, not one number on a chart, so we would always start with a qualified saddle fitter you trust.
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- Clean the leather with Arena Glycerine Soap to remove surface dirt and oil, let it dry, then condition it with Arena Leather Balsam.
- Both come in the Arena Leather Care Pack.
- Wipe the technical lining clean with a damp cloth.
- The CAIR cushions are never adjusted themselves, and opening the CAIR security tape voids the warranty.
For a step-by-step guide to looking after your leather, read Saddle care 101 and our care instructions.
Key features
- Panel: a performance panel with a generous footprint and gradually tapered edges for a gentle transition of weight, with provision for lift adjustments for balance and stability
- Seat: a comfort seat anatomically sculpted from multiple layers of foam to support your position
- Stirrup bar: an Ergonomic Stirrup Bar that works with the seat to support your position
- Flexiblocs: front and rear Flexiblocs with a padded knee insert