O'Neill Psycho Tech 5.5/4 HD Full Wetsuit

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  • Regular price $479.95


The Psycho Tech with Technobutter 3 and added heat-generating Technobutter Firewall includes the hi-tech features you need to stay warm and toasty in any condition.

Available in sizes S-2XL,MS,MT,LS,LT,XLS,XLT.

  • F.U.Z.E. Front Upper Zip Entry (chest) uses the same technology as our Patented Z.E.N. Zip entry with drain holes to keep you dry and feeling loose
  • O’Neill’s exclusive Technobutter 3, maximum strength, hydrophobic neoprene with featherlight ENVY foam rubber core. Ultimate warmth and comfort. Built to last
  • TB-Air Firewall, the most advanced insulate neoprene available. Trapped air technology with quick-dry properties. Psychotically warm
  • Fluid Seam Weld, 8mm silicone-based urethane sealed exterior with a triple glued and blind stitched interior. Watertight, durable and ultra flexible seam
  • F.U.Z.E 360° Barrier with Drian Holes
  • Double Seal Collar
  • Arms/Shoulders/Shins/Calfs: Technobutter 3
  • Chest/Back: Technobutter Firewall Smoothskin
  • Thigh/Butt: Technobutter Firewall
  • Red Zone water resistant zipper

Shipping & Returns
Returns or exchanges accepted within 15 business days of delivery.
Shipping and handling charges are non-refundable.

Questions about this product? Give us a shout, we're happy to help. Contact Us

Brick & Mortar
Please visit us in person on Cape Ann. We have two stores on the North Shore of Boston, our surf shop in Gloucester and the stand up paddle shop in Manchester by-the-Sea.