Very efficient, it is not easy for me to find the correct size of foot pockets, I am always between 2 sizes. The C4-400 is fine, the carbon is just awesome and the fins are light. Classy expensive fins. Top world class efficiency. As a freediver instructor, I test sometimes the fins's students. Alchemy is another world clearly.
I love the product so much I tell everyone I know to get them.
These carbon fiber fins are the best ones I've ever owned, and I know a lot of freedivers who can say the same with gusto. They are incredibly light weight and I barely feel them - it's as close to my being finless during Free Immersion. You exert less energy, reach depth goals, and increase bottom time with these. 10/10 would recommend to everyone - from beginner to pro.
I'm using alchemy v3 with a pink saft .Also, it is less the resistance of water that makes me more shiny.
Really good fins. The best for spearfishing competitions!
Been beating them fins ever since I got them and they serve me well, just love it.
It's a great product, great quality, hopefully you guys could sell it in more remote places like Panamá! There is a big market in Central America!
I gave my friend's a try and everyone likes it, awesome.
The fins are very good and light, making it easier when you are dynamic or trying to dive at depth, very efficient and flexible too.