Channel Islands "Upright" Fin 

The new CI Upright came from a need to balance the CI fin offering. Where the original, highly raked CI fin is more suited to classic down-the-line thrust and drawn out turns, the reality is, most surfers are riding smaller waves and beach breaks that require quicker turns, and a fin that allows for more pivot.
“You’ll find the CI Upright will help you in smaller waves and steep, quick waves, any time where you need quickness of response and the ease of top to bottom transitions”. - Britt Merrick
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Where the original CI fin is suited to bigger, better open face waves, the CI Upright has a high rate of return and responsiveness, which means it’s ideal for beach breaks and little waves where need to generate speed quickly.
“The CI Upright will lend itself to any board, but given the lower sweep, it will really suit grovellers and small wave boards where you need a little more get up and go” - Brit Merrick