Known as "hernias," these indicate internal drop-stitch failure and usually mean the board is near the end of its life. For Solid (Hard) SUPs:
Inspect the board under sunlight from various angles to spot indentations, overspray, or haziness that might hide previous repairs. Universal Components: buy used stand up paddle board
A thorough physical inspection is essential to avoid "waterlogged" boards or slow leaks that can ruin your investment. Known as "hernias