3 mm neoprene.
The seams of the foot pocket are waterproof due to GBS assembly (Glued and Blind-Stitched): the neoprene is glued first of all, then sewn for maximum strength (the sewing needle does not go completely through the neoprene in order to prevent water infiltration).
A latex sole: this increases comfort when walking, durability and, therefore, the lifespan of the product.
Choose the right size
Try them on with your fins. The fit should be as tight as possible.
These scuba diving boots provide thermal protection that has been tested by the independent INPP institute (Marseille, France) in order to validate their compliance with the current standard (EN 14225-1:2017)