O'Neill Men's Epic 4/3mm Back Zip Full Suit Black Size:LS and an adjustable dial fit

and an adjustable dial fit

and stiffer than Spark's standard glass-reinforced highbacks

Ergonomic thermoplastic grip

while the mule styling improves fit and function

Included Lenses: Comes with two interchangeable ChromaPop™ lenses for bright light and low light conditions

O'Neill Men's Epic 4/3mm Back Zip Full Suit Black Size:LS and an adjustable dial fitThe O'Neill Epic 4 3mm Back Zip Full Suit pairs 100% UltraFlex neoprene with FluidFlex Firewall, Wind Proof Smoothskin, and Glued and Blindstitched Seams for dependable surf warmth without fuss. Key Features Thickness: 4 3mm Neoprene: 100% UltraFlex neoprene Entry System: Back Zip, Easy Entry Seams: Glued and Blindstitched Seams with Minimal Seam Design Neck Seal: Double Super Seal Collar Storage: Key Pocket with Loop Sleeve Anchor: Hand Cuff Stitch