Mares Plana Avanti X3 Open-Heel Scuba Fins

Open-heel scuba fins with a three-channel blade and adjustable ABS straps for practical, everyday recreational diving.

$179.99

Size R S XL XS

Colour Black Blue Yellow

The Dive360 Take

The Plana Avanti X3 is a straightforward open-heel fin for divers who want useful features at a sensible price. Three channels let the blade flex and direct water through the kick.

The classic ABS strap system provides quick adjustment, while blade stabilisers help control sideways water movement. Choose your size with your dive boots in mind: a fin pocket needs to fit the boot you actually dive in.

Size Guide

Mares • Open-heel scuba fins

Swipe to see all measurements

Mares • Open-heel scuba fins
Fin size	EU	US¹	UK
XS	34–37	2.5–5	1.5–4
S	38–41	6–8.5	5–7.5
R	42–44	9–10.5	8–9.5
XL	45–48	11.5–13.5	10.5–12.5

For Excite Pro, X-Stream, Avanti Quattro 4X, Quattro+, Plana Avanti X3 and Superchannel OH, using Mares’ published size labels. Check fit with your dive boots. ¹ US sizes as published.

The serious stuff

Mares model 410001

Open-heel foot pocket

Three-channel blade with stabilisers

Classic ABS adjustable strap system

Listed sizes XS, S, R and XL; R means Regular

Listed colours Black, Blue and Yellow

Why we like it

A three-channel blade gives a practical balance of flex and propulsion.

Adjustable straps make it easier to set the heel fit around your dive boots.

Who we recommend it to

Recreational scuba divers choosing an uncomplicated open-heel fin. Use the published fin chart and check fit with your intended boots.