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The 2017 O'Neill 3.5mm Psycho Freak ST Boots are just the freaky footwear you're surf kit has been missing. A split toe design offers enhanced dexterity for better balance while the TechnoButter Air Firewall neoprene offers top-notch warmth and protection from the harsh bite of the ocean. Experience elevated performance and freakish warmth with the redesigned O'Neill 3.5mm Psycho Freak ST Boots.
TechnoButter Air Firewall – The most advanced insulative neoprene available. Trapped air technology with quick dry and wind proof properties. Psychotically warm.
TB3X Taped Seams
Fluid Seam Weld – A revolutionary seam construction that utilizes a non-chafing high-grade silicone-based urethane applied in liquid form to the outside of a glued and blindstitched seam completely blocking out water without restricting flexibility.
Arch Support for Better Board Contact
Deep Split Toe for Improved Balance
Leash-Stop Toe Guard
Shin & Arch Strap
Always rinse thoroughly inside and out with fresh water after every use. Hang to dry.