In cool and cold conditions, a quality thermal top is what keeps you out there longer and performing at your best. Vaikobi makes three thermal tops, each tuned for different levels of warmth. This guide breaks down the differences so you can choose the right thermal top for your activity and the conditions.
The Three VCOLD Tops at a Glance
| Top | Warmth | Best for |
|---|---|---|
| VCOLD Base Layer Top | Warm | Cool days, high-output training, or layering under a wetsuit, jacket or vest on cold days |
| VCOLD Hydroflex Top | Warmer | Cold days, wind chill, spray protection |
| VCOLD Flex Top | Warmest | Cold water sessions likely to involve immersion |
VCOLD Base Layer Top - Warm
The lightest of the three, so light you won't even know you're wearing it. Made from high-wicking hydrofleece that retains critical body heat while regulating your temperature during hard training sessions, with strategically-placed hydromesh underarm and side panels to help you breathe and prevent overheating.
Best for ocean paddling, surfski, outrigger canoeing, SUP, and foiling in cooler weather, and it's the natural choice to wear as a base layer under a wetsuit, vest or spray jacket.
The Base Layer Top comes in four styles to match how much coverage and warmth you need: hooded for extra warmth and sun protection, long sleeve for full-arm coverage, short sleeve for milder conditions, and vest for maximum freedom of movement or layering.
Choose this if: you run warm, you're training hard, you paddle, foil, or surf in cool rather than cold conditions, or you want a thin thermal layer to go under your wetsuit, vest or jacket.
Shop the VCOLD Base Layer Top.
Review - Wes I (USA) - 5 Stars ⭐⭐⭐⭐⭐
This is my favorite piece of gear. I wear the base layer long sleeve during the colder pre-dawn workouts, but if there is any sun in the sky, this is absolutely the perfect weight to take the chill off, but keep you from overheating as well. I pair it with the V-Cold shorts to great effect in our decidedly temperate San Diego winter weather, but water temp in the 50's (F) is still pretty nippy. Great piece of kit.
VCOLD Hydroflex Top - Warmer
The mid-weight all-rounder, and the most versatile of the three thermal tops. This powerfully lightweight top offers thermal protection in cool to cold conditions. A hydrophobic coating sheds water and dries fast, while the hollow yarn has a high thermal value that knocks out wind chill, so it holds your core temperature while blocking the wind and spray that make cold days miserable.
Best for cold-weather paddling, dinghy and skiff sailing, wing foiling, and foiling, where wind chill and spray are a factor but you're not fully immersed.
Choose this if: you want one top that covers most cold conditions, you sail, foil, or paddle somewhere windy, or you feel the cold and want spray protection without a full wetsuit.
Shop the VCOLD Hydroflex Top.
Review - Nadine R (AUS) - 5 Stars ⭐⭐⭐⭐⭐
As a new paddler who falls in the water ALOT this top has been fantastic. Despite the season turning to winter, I have not felt the cold or the wind while wearing this on my upper body. The special hydrophobic coating sheds the water and the fabric retains heat but is also light weight and very comfortable. I have had no rash under my arms or around my neck throughout my longer paddles and falling in on multiple occasions. This is a quality product.
VCOLD Flex Top - Warmest
The warmest VCOLD top Vaikobi makes, for bone-chilling conditions and the days you can see your breath in the air. It uses airprene fabrication for maximum comfort and thermal regulation: spandex stretch panels under the shoulders and arms allow natural movement, while a super-light plush inner fleece lining offers superior coziness in the cold.
Best for cold-water surfing, foiling, winter dinghy sailing, and any ocean performance sport likely to result in immersion, where you need serious warmth that still moves with you. For best results it should be form-fitting, keeping your core warm in cold environments.
Choose this if: you paddle, sail, foil, or surf in genuinely cold water, you're likely to get wet or go in, or you simply want the warmest option without wearing a bulky wetsuit.
Shop the VCOLD Flex Top.
Review - Basil T (USA) - 5 Stars ⭐⭐⭐⭐⭐
In my ten years of paddling, I have never put on a piece of paddling gear that felt as comfortable as the VCold Flex Top… Because my shape has changed over the years most wetsuit tops are too restricting, uncomfortable, and cause chafing… Not any more! This Vaikobi top is a game changer. After my paddle last night I went for a swim to test the garment's resolve and was pleasantly surprised… I felt no discomfort at all and when I started to overheat that would fade away as well… This piece of cold-weather gear is so good I ordered a 3mm top to be able to paddle all winter!
How to Choose: Layering and Conditions
The three tops aren't just warmer versions of each other, they're built for different jobs. As a simple rule:
- Cool conditions or high-output training or layering → Base Layer Top
- Cold, windy, or spray-heavy conditions → Hydroflex Top
- Cold water with likely immersion → Flex Top
On the coldest days you can also layer over any top. A Base Layer Top under a wetsuit, or under a VDRY smock or ½ zip vest, extends the range of any setup. For a full breakdown of layering, read our guide to proper wetsuit layering.
For serious cold-water protection beyond a thermal top, look at the FlexForce wetsuit range in 2mm and 3.5mm.
Browse the full VCOLD thermal range.
