Formula 1
Hollis F1 Fins – Divernet

Hollis has announced new colours for its F1 fin – yellow and white.
Yellow can make a diver easier to identify in low visibility, while white enables underwater photographers to colour-balance on their foot, it says, which makes sense.
The £140 all-rubber vented fins include spring-heel straps with adjustable positioning for fine-tuning their fit and are claimed to provide considerable power for minimal effort.