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O'Neill 4/3mm Heat Back Zip Full Wetsuit - Men's

SKU: ONW337-4X
Sale price $439.95

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Product Description

The Heat wetsuit is loaded with premium features and built using exclusive TechnoButter 3 neoprene—20% lighter with 30% less water absorption than standard high-end materials. The result is a suit that feels incredibly light, dries faster, and performs at a high level in a wide range of conditions.

TechnoButter 3 Firewall lining in the chest and back boosts warmth while maintaining exceptional flexibility. Combined with Fluid Seam weld construction and a redesigned 3/4 length zipper panel, the Heat delivers a perfect balance of durability, comfort, and easy entry for everyday surf sessions.

Features

  • Back zip entry for easy on and off
  • Redzone water-resistant zipper
  • Wind-proof Smoothskin panels
  • Double Super Seal neck for comfort and reduced flushing
  • Seamless paddle zones for unrestricted movement
  • External key pocket with loop
  • TechnoButter 3 neoprene for lightweight performance
  • TechnoButter Firewall lining for added warmth
  • Fluid Seam weld construction for durability
  • Aqua Alpha solvent-free lamination

Men’s Wetsuit Size Chart

Size Height (in) Weight (lbs) Chest (in) Waist (in)
XS 5'7" - 5'9" 125 - 140 36 1/2 - 37 1/2 28 1/2 - 29 1/2
S 5'8" - 5'10" 135 - 155 37 1/2 - 39 29 1/2 - 31
ST 6'0" - 6'2" 145 - 165 37 1/2 - 39 29 1/2 - 31
MS 5'6 1/2" - 5'8 1/2" 145 - 165 39 - 41 31 - 33
M 5'9" - 5'11" 155 - 170 39 - 41 31 - 33
MT 6'1" - 6'3" 160 - 180 39 - 41 31 - 33
LS 5'7 1/2" - 5'9 1/2" 160 - 180 41 - 43 1/2 33 - 35
L 5'10" - 6'0" 170 - 190 41 - 43 1/2 33 - 35
LT 6'2" - 6'4" 180 - 200 41 - 43 1/2 33 - 35
XLS 5'8 1/2" - 5'10 1/2" 180 - 200 43 1/2 - 46 35 - 37
XL 5'11" - 6'1" 190 - 210 43 1/2 - 46 35 - 37
XLT 6'3" - 6'5" 200 - 220 43 1/2 - 46 35 - 37
2XLS 5'9 1/2" - 5'11 1/2" 200 - 220 46 - 48 1/2 37 - 39
2XL 6'0" - 6'2" 210 - 230 46 - 48 1/2 37 - 39
3XL 6'0" - 6'3" 230 - 250 48 1/2 - 51 39 - 44
4XL 6'1" - 6'4" 250 - 270 51 - 53 1/2 44 - 48