The medium size was too
"The medium size was too small for my torso, when I normally wear medium shirts. The arms were quite long, but I am 5' 6" tall."
| U.S. MENS WETSUIT SIZE CHART | ||||
| SIZES | 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' - 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' | 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' - 6'2" | 210 - 230 | 46 - 48" 1/2 | 37 - 39" |
| 3XL | 6' - 6'3" | 230 - 250 | 48 1/2 - 51" | 39 - 44" |
| 4XL | 6'1" - 6'4" | 250 - 270 | 51 - 53" 1/2 | 44 - 48" |
| MEN'S METRIC SIZE CHART | ||||
| SIZES | HEIGHT (cm) | WEIGHT (kg) | CHEST (cm) | WAIST (cm) |
| XS | 170 - 175 | 57 - 64 | 92 - 95 | 72 - 74 |
| S | 173 - 178 | 64 - 70 | 95 - 99 | 74 - 78 |
| ST | 183 - 188 | 66 - 75 | 95 - 99 | 74 - 78 |
| MS | 169 - 174 | 66 - 75 | 99 - 104 | 78 - 83 |
| M | 175 - 180 | 70 - 77 | 99 - 104 | 78 - 83 |
| MT | 185 - 191 | 73 - 82 | 99 - 104 | 78 - 83 |
| LS | 171 - 177 | 73 - 82 | 104 - 110 | 83 - 88 |
| L | 178 - 190 | 77 - 86 | 104 - 110 | 83 - 88 |
| LT | 188 - 193 | 82 - 91 | 104 - 110 | 83 - 88 |
| XLS | 174 - 179 | 82 - 91 | 110 - 116 | 88 - 93 |
| XL | 180 - 185 | 86 - 95 | 110 - 116 | 88 - 93 |
| XLT | 191 - 196 | 91 - 100 | 110 - 116 | 88 - 93 |
| 2XLS | 176 - 181 | 91 - 100 | 116 - 123 | 93 - 99 |
| 2XL | 183 - 188 | 95 - 104 | 116 - 123 | 93 - 99 |
| 3XL | 183 - 191 | 104 - 114 | 123 - 129 | 99 - 111 |
| 4XL | 185-193 | 113-122 | 129 - 136 | 112-122 |

Overall rating: 4.642857 / 5 from 56 reviews.
Review topics: ["fit","quality","feel","top","stretch","arms","flexibility","swim","warmth","neoprene","o\u2019neill","session"].
"The medium size was too small for my torso, when I normally wear medium shirts. The arms were quite long, but I am 5' 6" tall."
"Just right for wind sports in Maui."
"Excellent quality! Bought wrong size. Easily returned product. Size seemed to run small."
"It runs a bit tight but it doesnt feel restrictive. I havent tried it out yet but excited to give it a go"
"Is fantastic. I'm a 30+ year real estate executive. Customer Service is king and O'Neill has it figured out. They take care of their customers and don't ask questions and have for me for over 20 years. Incredible! I won't buy anything but O'Neill as a result. Recommend to all of my water sports friends."
"Fits like a glove. The initial top had a rip in the forearm. I was able to return without any issues and receive a new top. Overall feels and fits great when it arrives without any tears!"
"Provides the perfect warmth for the cool dawn patrol sessions"
"Only reason I replaced original was worn out from wear! I've worn these for both slalom waterskiing and quite a bit of warm water diving in Caribbean! Unfortunately, the scuba pack straps do put a bit of wear and tear on them. Freedom to move under and on top of water is fantastic, they protect me from sun, and they keep me warm when just a bit is needed. On the dives especially, I don't have any flushing and feel quite comfortable with these on for the duration of the dive and into a 2nd dive. They dry off relatively fast so I don't end up putting on a wet rag for the 2nd dive. Perfect! Judging from the other examples in these reviews, the size seems to run pretty consistently. I have a 44" chest and a 32" waist."
"180lb and and 5’8 fits okay"
"Very warm with little flush throughs…I’m 6.3 and weigh 205lbs and the xxl fits perfect…it also doesn’t pull my neck back while paddling…I highly recommend this topper to anybody in the market for one!…Now go hit the lip mintna!"