Each component of the system can be arranged to be highly technical for divers trained to push the limit, or adjusted to make a travel friendly set up suitable for any diver.
A twin donut refers to a twin cylinder wing that creates a complete ring of air around the cylinders. They are not permanently attached to a harness, nor to a back plate, but instead are squeezed between the back plate and the cylinders themselves. The complete ring of air makes the twin cylinder wing extremely stable, without dramatic shifts of air. Apeks paid special attention to the fabric and materials used to create the twin cylinder wings to ensure the best possible product.