The O'Neill Heat mens wetsuit has a long tradition of being a great wetsuit and a good value. For 2011, not much has changed for the O'Neill Heat mens wetsuit. There are going to be some new decals, logos and color choices, but overall, it's the same great wetsuit you know and love.
100% Super stretch neoprene (50% Ultraflex DS and 50% Fluidflex) 1X Fluid Seam Weld on the outside of the suit. "Code Red" covert zipper. This really helps keep a lot of water out and I'm really impressed with how well this works. The O'Neill Heat has a full zip back and is really easy to get in and out of the suit. The O'Neill Heat wetsuits are sized from mens Small to 4XL. No other O'Neill wetsuit goes to size 4XL.
Arms and Shoulders: Ultraflex DS
Legs and Lower Torso: Fluidflex
Chest: Ultraflex Firewall
O'NEILL U.S. MENS WETSUIT SIZE CHART
Sizes | Height | Weight | Chest | Waist | Hips | Neck | Inseam |
| XXS | 5'6"-5'8" | 115-130 | 32« - 34« | 27 - 29 | 32 - 34 | 14 | 27 7/8-28 7/8 |
| XS | 5'7"-5'9" | 125-140 | 34« - 36« | 28 - 30 | 33 - 35 | 14 « | 28¬-29¬ |
| S | 5'8"-5'10" | 135-155 | 36« - 38« | 29 - 31 | 34 - 36 | 15 | 28 5/8-29 5/8 |
| ST | 6'-6'2" | 145-165 | 36« - 38« | 29 - 31 | 34 - 36 | 15 | 30 7/8-31 7/8 |
| M | 5'9"-5'11" | 150-170 | 38« - 40« | 30« - 32« | 35« - 37« | 15 « | 29-30 |
| MS | 5'6 «?-5'8 «? | 140-160 | 38« - 40« | 30« - 32« | 35« - 37« | 15 « | 27«-28 1/8 |
| MT | 6'1"-6'3" | 160-180 | 38« - 40« | 30« - 32« | 35« - 37« | 15 « | 31¬-32¬ |
| L | 5'10"-6' | 170-190 | 40« - 42« | 32« - 34« | 37« - 39« | 16 | 29 3/8-30 3/8 |
| LS | 5'7 «?-5'9 «? | 160-180 | 40« - 42« | 32« - 34« | 37« - 39« | 16 | 27 7/8-28 7/8 |
| LT | 6'2"-6'4" | 180-200 | 40« - 42« | 32« - 34« | 37« - 39« | 16 | 31 5/8-32 5/8 |
| XL | 5'11"-6'1" | 190-210 | 42« - 44« | 34« - 36« | 39« - 41« | 16 « | 29?-30? |
| XLS | 5'8 «?-5'10 «? | 180-200 | 42« - 44« | 34« - 36« | 39« - 41« | 16 « | 28¬-29¬ |
| XLT | 6'3 «?-6'5 «? | 200-220 | 42« - 44« | 34« - 36« | 39« - 41« | 16 « | 32-33 |
| XXL | 6'-6'2" | 210-230 | 44« - 46« | 36« - 38« | 41« - 43« | 17 | 30 1/8-31 1/8 |
| XXXL | 6'-6'3" | 230-250 | 47 - 49 | 41« - 43« | 44 - 46 | 17 ¬ | 30 1/8-31 1/8 |
