Floatation device

摘要

Described herein are floatation devices, surfboards, surfboard blanks, and methods of manufacture. The board or device design is altered by removal of a traditional stringer or stringers and instead form a composite of different foams to produce a board or device with improved strength and durability along with similar or even better board dynamics.

主权项

1. A surfboard blank, comprising:
a top low density foam portion; a bottom low density foam portion; a central layer made of a high density foam sandwiched between the top foam portion and the bottom foam portion; and at least one linear spine portion positioned parallel to a longitudinal length of the surfboard blank, the at least one linear spine portion extending along a portion of the surfboard blank between 5% and 50% of the longitudinal length of the surfboard blank, wherein the at least one linear spine portion comprises a high density foam; wherein the surfboard blank does not include a stringer or stringers.