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Aqua Lung

Thermal Fusion Undersuit

£299.00 RRP £399.00 SKU: 70573-1

Rated 5.0 out of 5
2 Reviews

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Aqua Lung Thermal Fusion Undersuit
Aqua Lung Thermal Fusion Undersuit Aqua Lung Thermal Fusion Undersuit

Aqua Lung
Thermal Fusion Undersuit

£299.00 RRP £399.00

Rated 5.0 out of 5
2 Reviews

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Aqua Lung

Thermal Fusion Undersuit

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Aqua Lung

Thermal Fusion Undersuit

£299.00 RRP £399.00 In Stock

Brand: Aqua Lung

Model: Thermal Fusion Undersuit

SKU: 70573-1

Please note: This item cannot be shipped outside the European Union - learn more

The AquaLung Thermal Fusion Undersuit is a warm unisex undersuit for your drysuit to keep you warm in the water.  With the same U-zip entry as the Fusion Drysuit Range and independent lab tests by SPIN the Thermal Fusion is proven to be comfortable and effective at keeping you warm in cold waters.


Dual Layer

The inner and outer layer of the undersuit are mostly independent from each other so they can each do their job to keep you warm and comfortable.  The inner layer is made from Polartec 200 Fleece that delivers superior warmth and air to migrate easily around the suit.  The outer layer is Polartec Power Stretch Pro that compresses the suit to your shape and movement so the suit won't restrict you when you try to reach something.


ABOUT Aqua Lung

Aqualung have been industry leaders producing a range of diving equipment from regulators and computers to drysuits, wetsuits and masks.

Aqualung have been producing dive equipment since 1943, started by Jacques-Yves Cousteau and Émile Gagnan who introduced the world to scuba diving and the Aqua-Lung.

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We offer free standard delivery on orders over £50.

Standard delivery is £3.95 for orders under £50. You will receive your order 2 - 4 days from the date of despatch. Order by 3pm on a working weekday and we will aim to despatch the same day.

Next Working Day is £6.95.

Learn more about delivery

We hope you will be completely satisfied with any product purchased from Simply Scuba.

However, you can return it for any reason within 28 days from the date of despatch for a full refund (less postage costs).

Royal Mail tracked return option within the UK for your convenience.

Learn more about returns
average rating 5.0 out of 5
Based on 2 reviews
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100% of reviewers would recommend this product to a friend
2 Reviews
Rated 5 out of 5
Review posted

Warm and Comfortable

This undersuit is extremely warm and comfortable. It may come with a hefty price tag, but you get what you pay for.

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Rated 5 out of 5
Review posted


This is perhaps the warmest thing in the world. I absolutely love it. You really get what you pay for with this.

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