The most advanced wader Simms has ever produced.

The G4 PRO Powerlock Boot offers supreme durability and superior grip thanks to state-of-the-art materials that work in different locking directions with the new Powerlock.
Waterproof synthetic Lorenzi scratch leather upper combined with waterproof synthetic mesh for long-lasting durability
Partial neoprene lining for comfort and easy on/off
Laser-cut fabric eyelets allow for fine-tuned adjustments across the top of the foot and provide reliable durability
Vibram Idrogrip outsole with built-in Powerlock system for quick and customizable traction adjustment
Vibram Idrogrip rubber outsole