Open Box (Great condition, limited use): O'NEILL Psycho Tech 3mm St Booties, Color: Black, Size: 6 (5100-002-6)

The O'Neill Psycho Tech 3mm Split Toe Booties for men are premium, performance-driven water booties engineered to deliver unmatched warmth, comfort, and durability in cold-water conditions. Constructed from 3mm TechnoButter 3 neoprene, these surf booties provide flexible insulation that conforms naturally to the foot, offering a snug, anatomical fit that supports dynamic movement on the surfboard while protecting against harsh elements.

The split-toe design enhances balance, board feel, and stability, giving surfers precise control during aggressive maneuvers. Interior TB3X taped seams and Fluid Seam Weld exterior construction combine to create superior waterproofing, durability, and long-lasting performance, while minimizing irritation and friction for all-day comfort. The TechnoButter 3 Firewall lining adds soft, insulating warmth to shield feet from cold water and wind chill.

Functional design features include an instep strap with O-Ring seal for a secure, adjustable fit, and a heel pull tab for effortless on-and-off wear without compromising the snug anatomical fit. The durable outsole provides traction and protection against rocky surfaces, reefs, and abrasive terrain, ensuring confident footing in any environment.

Engineered for extreme water sports, these booties deliver a perfect combination of stretch, thermal protection, and rugged durability. Whether surfing, paddleboarding, or engaging in cold-water activities, the Psycho Tech 3mm Split Toe Booties offer unmatched performance, comfort, and style for both men and youth seeking top-tier cold-water protection.