Back to top

Please select a color/size.


  • Built with Ultraflex Durable Stretch Neoprene; 4mm thickness in the body and 3mm thickness in the legs and arms
  • Fluid Flex Firewall Insulation panels inside chest and back make this suit warmer and more flexible than other wetsuits
  • Fluid Seam Welding helps prevents water from coming into the suit through the seams; Red Zone Zipper and panel also help prevent water from entering the suit
  • Double Super Seal neck for comfort and reducing water flush through the neck
  • Krypto knee pads for durability
  • External key pocket


View all O'Neill Long Wetsuits

REI membership


Best Use Watersports
Fabric Neoprene
Sleeve Length Long Sleeve
Inseam (in.) Unavailable
Gender Men's
Zipper Location Rear

Size chart

  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 134ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

Would this suit be too warm for the summer months ie 72 degree water?

Asked by: BCthetwo
Most people would be comfortable in this suit in 72 degree water. However the length of time you’re in the water and the activity you’re involved in may create a scenario where you might get cold or overheat.
Answered by: REIservice
Date published: 2017-05-13

The O'Neill website size chart list additional sizes than just M.  It appears that MS would fit me better, than M.  Your website mentions four sizes for M.  Is MS one on them? I'd like to order the O'Neill 4/3 Heat at the sale price.

Asked by: Metallurgist
  • y_2017, m_5, d_25, h_9CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_880330, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 40ms