Isabella Coast Air Annexe (left / right)

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Adds a full extra room to your air awning – Extends your Isabella Air Cirrus setup by a generous 250 × 250 cm, giving you proper additional space for sleeping, storage or relaxing

Same air system as your awning – Uses integrated air tubes, so it inflates quickly with your existing pump and feels like a seamless extension rather than a bolt-on

Fully enclosed and insulated space – Includes a fitted PVC floor and insulated ceiling, making it far more usable in cooler conditions compared to open extensions

Matches your Cirrus Coast perfectly – Built with Isacryl breathable fabric and Isabella materials, so it looks and performs like part of the original awning

Left or right flexibility depending on pitch – Choose the side that suits your setup, so you’re not restricted by caravan door position or wind direction

• Product type: Inflatable awning annexe

• Compatibility: Isabella Air Cirrus Coast 300 & 400

• Variations: Left side or Right side

• Size: 250 cm (W) × 250 cm (D)

• Frame: IsaAir inflatable tube system

• Colour: Coast (Ocean tone)

Included as standard:

• Air annexe structure

• Integrated air tubes

• Curtains

• Fitted floor

• Pegs and carry bag

This is best thought of as a proper room extension, not just extra storage. If you’re touring as a family, it’s ideal as a bedroom with an inner tent setup. If you’re a couple, it works brilliantly as a clutter-free storage zone to keep your main awning clear. The key decision is left vs right — always choose the side opposite your main door or prevailing wind for the most usable layout.

If you’re unsure how this annexe will fit your caravan, especially combined with other gear, don’t guess. Give us a quick call on 01452 730100 and we’ll help you check your van’s layout against the awning’s rail height and depth. We’d rather you get it right first time.

1. What awnings does the Air Annex Coast fit?
It is designed for Isabella Air Cirrus Coast 300 and 400 models.

2. What size is the annexe?
It measures 250 cm wide by 250 cm deep.

3. What is the difference between left and right versions?
It refers to the side of the awning when facing it from the front.

4. How does it attach to the awning?
It zips directly onto the side of the awning and integrates with the structure.

5. Does it use poles or air?
It uses the IsaAir inflatable tube system, no poles required.

6. Can it be used as a bedroom?
Yes, it’s commonly used as a sleeping area or storage space.

7. Is it fully enclosed?
Yes, it includes walls, floor and ceiling, making it a complete extension.

8. What materials is it made from?
It uses Isacryl breathable acrylic walls, polyester roof and PVC base.

9. Is it suitable for touring?
Yes, it’s designed for touring use with quick inflation and pack-down.

10. Can I fit two annexes?
Yes, you can fit one on each side if you want maximum space.