| U.S. MENS UV PROTECTION 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" |
| M | 5'9" - 5'11" | 155 - 170 | 39 - 41" | 31 - 33" |
| L | 5'10" - 6' | 170 - 190 | 41 - 43" 1/2 | 33 - 35" |
| XL | 5'11" - 6'1" | 190 - 210 | 43 1/2 - 46" | 35 - 37" |
| 2XL | 6' - 6'2" | 210 - 230 | 46 - 48" 1/2 | 37 - 39" |
| 3XL | 6' - 6'3" | 230 - 250 | 48 1/2 - 51" | 39 - 44" |
| 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 |
| M | 175 - 180 | 70 - 77 | 99 - 104 | 78 - 83 |
| L | 178 - 190 | 77 - 86 | 104 - 110 | 83 - 88 |
| XL | 180 - 185 | 86 - 95 | 110 - 116 | 88 - 93 |
| 2XL | 183 - 188 | 95 - 104 | 116 - 123 | 93 - 99 |
| 3XL | 183 - 191 | 104 - 114 | 123 - 129 | 99 - 111 |
Thermo-X layering fabrics provide incredible insulation with low bulk and quick-dry properties.
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Overall rating: 4.4736843 / 5 from 19 reviews.
Review topics: ["fit"].
"I usually wear Medium in rashguards, and decided to order a Large size for this top wetsuit. When I got this item, I thought it was a Large Youth size. It is super tight. I usually wear 32 in boardshorts and they fit perfectly, but there is definitely something wrong about the size of this item"
"Do they also come in a turtle neck ?"
"He wears specifically for this time at the year"
"Great!"
"I love it being 65 I get cold faster this has helped extend my time in the water coupled with a 4-3 chest zip O’Neil"
"This top replaces one that is at least 10 years old. I use it underneath my O’Neill Fluid drysuit ( unfortunately no longer made by O’Neill ). The Thermo crew is very comfortable and fits me well. I’m 6’3 and 193 lbs. great garment that I recommend"
"Feels great"
"Not awesome but magical. This fabric should be used to line gloves, socks and booties. I’m a cold water swimmer at Walden Pond in Concord, MA. I was in last week with snow and air/ water at 29/39. When I finished an hour swim and doffed the wetsuit I was able to stand in the sun with just the Thermo and Speedo and felt warm. It doesn’t hold water so when you doff it and shake it’s like a water spray that comes off. If the whole graphene thing works this product would be a natural fit."
"I wear the thermo top and am able to swim no Matter how Cold it is outside. Such a great discovery!"
"I like this for many reason. Warm, comfortable, fits well. Only draw back is, how much water it holds. Took it off first time and realized how heavy it is when its soaking wet. Probably not needed for warm Hawaii waters."
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