Sporasub's Eva board is constructed in EVA using injection moulding. The huge volume and large size of the float makes it perfect for shore diving when you don't have a boat, especially with the array of available accessory attachment points. Straps designed to hold up to two spearguns allow you to take out a spare, which is useful if you damage any components of one gun.
Sporasub have aimed to make the paddle out as easy as possible in this design. The float has a boat shape and features which help it to glide through waves. Under the bow is an extended area of volume which acts as a shield to waves and reduces the surface area in contact with the water. The same is done at the rear where two careens assist in steering, reducing friction and help with balance.
The float comes with a specialised reel to attach dive line to which runs through the bow. A rotating flag can be attached at the front or rear to improve your visibility. For storage of other accessories or your catch, a large nylon sack with zipper closure is centred on the float.
Eva board Features:
-Built in EVA using injection moulding
-Perfect for shore diving applications
-Capable of holding plenty of gear and is easily towed
-Shield underneath the bow for smooth movement through surf
-Catamaran style careens on the rear to elevate the board, assist steering and prevent capsizing
-A reel is included on the bow (without line) that extends through the bow
-Large volume red nylon sack with a zipper closure
-Various attachment points for other accessories such as spearguns
I have a couple of this class of float - cargo float. One is a polypropylene double wall float (like a kayak) and this one is pressed EVA (like a shoe sole).
EVA is more buoyant, stable, and lighter.
This product in specific also comes with many attachment points pre-assembled. Very useful points but the speargun straps are just wide enough to fit big teak style guns. Easy modification to remove the problem and actually improve on the design.
The reel is decent. Holds enough line for any foreseeable shore application. I have mine with 3mm nylon rope terminated to a SS shark clip. I clip it against one of the attachment points to use as a backpack pre and post dive. Clip it to the gun to tow whilst scouting, clip it to a small grapple anchor to tie hold stationary, clip against cray nets/bags to pull big loads up.
Comes with a flag so that'll save a few bucks.
Downside is the bag is quite small. I only use the bag for gear and will bring a net to clip against the float as my catch bag.
Overall, it is my float of choice when launching from shore/rocks. Not useful for launching from boats or kayaks.
I paid $599. At $399, that's two dives out worth of food.