Preheat oven to 350°F (175°C) and grease a 8x4 inch loaf pan.
In a large bowl, whisk together mashed bananas, eggs, vanilla extract, and maple syrup until smooth.
In a separate medium bowl, combine almond flour, baking soda, sea salt, and cinnamon.
Fold the dry ingredients into the wet ingredients until no large lumps of flour remain.
Pour the batter into the prepared loaf pan and smooth the top with a spatula.
Bake for 45 to 55 minutes, or until a toothpick inserted into the center comes out clean.
Remove from oven and let cool in the pan for 15 minutes before transferring to a wire rack to cool completely.