Neoprene hatch covers provide a waterproof seal under hard hatch covers - if you use neoprene hatch covers you must have a hard cover over the top to prevent wave implosion.

These are for 10" round hatches (25cm) - the covers are made from 3mm neoprene with sewn in shockcord around the edge.

For hatches with very thick rims (plastic kayaks with rotomoulded hatch rims) we advise a Neoprene Hatch Covers - Custom hatch cover to allow for the thickness of the rim, as the neoprene may not stretch this far.
Please send a picture of the hatch:

1. From above with a tape measure for sizing and 
2. From the size to show thickness of the rim.

We stock other sizes such as 8" round (20cm) and ovals to fit the older Mirage Sea Kayaks (50 x 31cm). For other oval shapes and non-oval custom shapes we can arrange to have hatch covers made up - see our Neoprene Hatch Covers - Custom page. We will usually require you to send us a template of the hatch to ensure a proper fit and they will take a few weeks to create.