Alchemy V3-30／V3-30Plus ブルー アルケミー フリーダイビング カーボンフィン（C4フットポケット）

V3-30和V3-30 Plus是专为深潜设计的鳍，采用高级碳纤维材料，提供强大的反馈和速度。鳍片角度为30度，结合C4脚袋的额外3度，总有效角度为33度，旨在提高潜水效率。

• The description claims that the fins provide powerful feedback and speed.
• The description claims that the blade angle is 30 degrees, combined with an additional 3 degrees from the foot pocket, resulting in a total effective angle of 33 degrees.
• The description claims that the fins are designed to improve diving efficiency.