When to wear it in Cornwall: With sealed seams, this 2mm springsuit works from roughly May/June to September/October here. June can be hot on the beach, but the sea is usually warmest from late August into September. Everyone feels the cold differently, so if you run cold, take a month off each end.

Warmth and stretch: 100% super stretch Japanese limestone neoprene – lighter, warmer, softer, stretchier and easier to get on and off. Dope dyed jersey with solvent-free AquaA water-based lamination, from Bluesign approved mills.

Fit: tailored with minimal seams.

Durable and watertight: triple glued, blind stitched seams; shoulder entry with a contoured retro design.

Care: rinse inside and out with fresh water, hang dry in the shade, and don't stand on it when changing.

Warranty: 1 year on seams and neoprene. 80% neoprene, 20% nylon.