Polar Bear swimsuit is available in sizes XS size 2-4 UK, Small size 6-8 UK, Medium size 10-12 UK, Large size 14-16UK, XL size 18-20 UK, 2XL size 22-24 UK, 3XL size 26-28 UK, 4XL size 30-32UK.
It's made of 210gsm slinky matt lycra with white thread.
Please note that although the costume is lined there is no contouring or bust support. It's a basic two bits of fabric stitched together. ( but it looks and feels great IMHO ).
The cost is £38 plus £4.50 P&P but there is a discount if you get together and order more than one.