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Copy and paste into browser or click through quidco and then search rg1 insulated.http://www.tiso.com/shop/berghaus/rg1_insulated_jacket/
Cheapest place I could find for the insulated one.
Small - X Large
If you live near one of their stores you can collect it and get it for £50.00
9% Quidco too.
only small, medium and large left
XL and XXL and XS out of stock, don't forget to go through Nectar to collect points