Hydrabolic Stringers create the most lively and responsive board you could imagine! With stored energy in the curving stringers, the additional spring and flex achieved is phenomenal. Hydrabolic Stringers are available with any of our board models with an EPS/epoxy construction. The Hydrabolic Stringers are available as 1/8" wood ply or as 1/2" high density PU (carbon strip reinforcement is highly recommended with PU stringers). Featured is Machete Model with 1/8" wood ply stringers.