The Phazer fin, with its revolutionary composite wave rib technology, is designed to provide balance and power for any experience level. The Phazer uses a tri-material construction and advanced water channel system to optimize energy with every kick.

• Wave Rib Technology: The revolutionary side ribs are made of elastomeric
  rubber sections and firmer wave-shaped structures to load and release energy
  at precise moments during the kick cycle.
• Hydro Power Vent: Water can flow through the blade, along the channel in
  front of the foot pocket. This enhances efficiency, power, and stability for every
  diver, from student to pro.
• Improved Hydrodynamics: The soft TPR membrane on the blade channels
  water for improved hydrodynamics during both the power stroke and recovery
  portions of the kick cycle.
• Tri-Material Construction: we’ve optimized every single area of the fin by using
  materials intentionally: the foot pocket, blade, and side ribs are made with
  different, specific advanced materials to give you the best performance.