What should I wear when going out on a boat? With the launch of SmartTherm PRO, Henri-Lloyd has clearly shown that it fully understands this is one of the most pressing questions boaters ask themselves, especially during these early spring days. Daylight hours are increasing and temperatures are rising quickly, but the wind still makes itself felt, and the weather is always ready to play tricks. The general rule, as is well known, is to dress in layers, but the final result depends entirely on the quality of each individual layer. The hardest one to choose is often the middle layer—the mid-layer—which should be lightweight, comfortable, warm, breathable, and waterproof.
Is it impossible to combine all these features in a single soft-shell for boating? No—or rather, not anymore. Henri-Lloyd has in fact introduced SmartTherm PRO, a new line of mid-layer clothing for yachting designed to provide complete protection without compromising comfort.
SmartTherm PRO: Henri-Lloyd shows what the perfect mid-layer for boating should be like
What are the details that make the SmartTherm PRO line stand out? The key innovation in Henri-Lloyd’s new range is, first and foremost, its original body-mapped design, with differentiated panels that provide each area with tailored, targeted protection.
An ideal mid-layer must consider that different parts of the body have different needs and characteristics, especially in terms of breathability, thermal protection, and flexibility.
A waterproof yet breathable mid-layer
Anyone who truly values technical boating apparel and pays close attention to their choices knows that, in most cases, mid-layers are not waterproof, with that role typically left to outer shells. This is exactly where, in addition to body mapping, Henri-Lloyd clearly sets itself apart from other brands: garments in the SmartTherm PRO line are made with a 20k waterproof outer fabric, providing full protection against waves and rain, even in heavy conditions.
As explained by British sailor Sam Goodchild, an IMOCA winner who collaborated with Henri-Lloyd to refine this new technical clothing line, “mid-layers are what we wear most of the time at sea. SmartTherm PRO is unique because it combines warmth with waterproof and breathable protection, so I can stay comfortable and protected all day. That’s why it’s become my go-to layer on the water”.
When should you use the new SmartTherm PRO garments on board?
Thanks to the innovations introduced—and as confirmed by Goodchild—the SmartTherm PRO jacket, vest, and salopettes can be used for everyday sailing, as well as for long-distance cruising, regattas, and even the most demanding offshore races.
The technical features of SmartTherm PRO mid-layers: what materials?
As mentioned, the key feature of this innovative boating mid-layer is its high level of waterproof protection—but that’s not all. We’re talking about technical apparel designed to be lightweight, non-bulky, and comfortable to wear.
Everything is built around 2-layer DRI PRO™ technology and the use of 100% recycled ripstop nylon fabric, protected by a hydrophilic PU membrane (free from PFOA and PFC). The combination of these materials ensures outstanding performance in both breathability and waterproofing.
Warmth is also essential in inner layers, and this is where VIVO Ocean insulation comes into play. Thanks to its laser perforation, it increases breathability by 30% while still providing excellent thermal protection.
Details that ensure freedom of movement
You know, the devil is in the details—and in technical boating apparel, that often means seams. Henri-Lloyd has addressed this at the source by introducing fully bonded seams in this new mid-layer line, ensuring durability and protection while also improving flexibility and reducing weight.
Comfort and fit are further enhanced by soft, pleasant-to-the-touch linings, as well as strategically placed stretch panels. Wearing these mid-layers becomes a pleasure, as does the full freedom of movement—especially for those who spend long hours on board. And let’s not forget: these are mid-layers. Thanks to their reduced thickness and compact design, SmartTherm PRO garments fit perfectly under outer shells.
The SmartTherm PRO jacket
The standout piece of the new SmartTherm PRO range is the jacket, featuring a waterproof YKK® AquaGuard® zip, complemented by internal storm flaps and fleece-lined pockets. Both aesthetics and safety are enhanced by reflective inserts, while comfort and protection are ensured by soft elasticated hems and cuffs.
The new Henri-Lloyd mid-layer vest
Warmth and protection—even without sleeves. A mid-layer vest is a smart choice for greater freedom of movement. That’s why Henri-Lloyd’s new line includes a sleeveless option designed specifically for smart layering on deck, while also performing perfectly as a standalone garment when temperatures rise.
The waterproof salopettes that complete the perfect mid-layer
The same intelligent body mapping, the same technical materials, and the same innovative solutions to ensure comfort, breathability, and waterproofing: SmartTherm PRO salopettes complete the range. Sailors will particularly appreciate the ventilation provided by laser perforation and the stretch panels at the knees.
Key features of SmartTherm PRO technical sailing apparel
| Waterproof rating | 20k |
| Breathability | 40k |
| Targeted insulation (jacket) | 150 GSM body, 100 GSM sleeves |
| Targeted insulation (salopette) | 60 GSM chest, 100 GSM legs |
| Seams | Bonded |
| Zip | YKK® AquaGuard® |
| Main fabric | 100% recycled ripstop nylon |
SmartTherm PRO mid-layer by Henri-Lloyd: FAQ
What does it mean that SmartTherm PRO garments are 20k waterproof?
Saying that the new SmartTherm PRO mid-layer has a 20k waterproof rating means these garments can withstand a water pressure of 20,000 mm over a 24-hour period. As a result, Henri-Lloyd’s jackets and vests provide a high level of protection even in heavy rain and wet snow.
What does it mean that Henri-Lloyd mid-layers are 40k breathable?
A 40k breathability rating indicates an extremely high level of moisture management: the fabric allows up to 40,000 grams of water vapor to pass through one square meter in 24 hours. This means these mid-layers ensure maximum comfort even during high-intensity activity with heavy perspiration.
Why is it important to wear technical mid-layer garments on a boat?
Wearing technical mid-layers is essential for maintaining warmth and comfort in changing and often harsh conditions. Thanks to breathability and targeted insulation, they help regulate body temperature and manage moisture. In the case of SmartTherm PRO garments by Henri-Lloyd, waterproofing is an added benefit.
What is ripstop nylon?
Ripstop nylon is one of the most interesting technical fabrics, featuring a special weaving technique that makes it highly resistant to tearing.
What does a complete mid-layer consist of?
Many boaters think that the mid-layer in technical sailing apparel is limited to a fleece or a light jacket. As demonstrated by Henri-Lloyd with this new range, a complete mid-layer system can also include salopettes and, if needed, a vest.
How much do SmartTherm PRO mid-layer garments cost?
The new Henri-Lloyd mid-layer range is available online on the brand’s official website. The SmartTherm PRO jacket is priced at €324.95, the vest at €229.95, and the salopettes at €365.95.
