TECHNICAL CLOTHING ADVISES
Why is windproof clothing important?
Whether you are active or resting, it is very important to be protected from the wind, because the wind can dramatically decrease your body temperature. Based on the "wind-chill" model, which measures the perceived temperature in cold, windy conditions, a temperature of 5°C combined with a 30km/h wind creates a wind-chill temperature of 0°C. If the air temperature is 0°C and the wind speed is 30km/h, this drops to -6°C. Our products are designed to block the effects of the wind.
What are the benefits of a bright red or fluorescent yellow hood?
Fluorescent and bright colours are more eye-catching than standard colours and make the wearer more visible in daylight. When on board, the wearer can be seen more easily by fellow crew; if s/he falls overboard, leaving only the head visible above the water, the wearer will be easier to spot and rescue thanks to the bright hood.
What is the purpose of reflective patches on a jacket?
On the collar, cuffs, hood and shoulders, these patches make the clothing more visible at night or in low-light conditions. They make the wearer easier to see on board, but also, if the wearer falls overboard, the shoulders, neck, wrists and head remain above the waterline. There is no need for other parts of the jacket to feature these patches, as they will be covered by the lifejacket. For this reason, these are the standard patches used on sailing jackets.
What is laminate and what is the three-layer complex?
The three-layer complex is a sandwich-like, laminated (glued) construction. It is made up of a thin layer of absorbent material (aiding the wicking-away of water vapour generated by the body), a breathable membrane with technology allowing the water vapour out but not letting water droplets in, and a woven, water-resistant textile base to help the jacket dry out quickly.
What does "waterproofing" mean?
Waterproofing describes a material's resistance to being penetrated by water. It is measured using a standard water pressure test. Based on the fact that the average pressure of rainwater varies from 1000mm to 2000mm, a material is considered to be waterproof from 2000mm and up. These products can withstand between 2000 to 10000mm, making them highly waterproof and appropriate for all weather conditions, even the most extreme, in the case of the Tribord 900 range.
What is the so-called "shower" waterproofing test?
This is a standard test whereby the item of clothing is placed beneath a shower that reproduces various climactic conditions. Products are certified 100% waterproof following a 4-hour test simulating downpours of 100 l/h/m² and 450 l/h/m², depending on the use of the product. To put this into context, the world record for precipitation was 174 l/h/m² over 4 hrs 30 mins in the USA, unbroken since 1942 (United States National Oceanic and Atmospheric Administration). When it rains in Paris, the average is 2 l/h/m².
What are watertight seams and watertight tape?
These are seams which are watertight thanks to waterproof, heat-sealed tape. Fixed behind the seams, this tape is vital for the waterproofing of the garment, preventing the water from penetrating via capillary action (the passage of water through the material by being absorbed by the threads or through stitching holes).
What is a waterproof, breathable, absorbent membrane?
A membrane works in stages to wick away perspiration. First, the material swells with water vapour to saturation point, before releasing the water vapour outwards thanks to the difference in pressure between the inside of the jacket and the outside. The main benefit of the water-absorbent membrane is that it has no pores, so does not need to be excessively rinsed in order to flush out the crystals deposited by salt water. This maintains the jacket's breathability at all times.
What is the hydrolysis phenomenon?
The hydrolysis phenomenon refers to the way in which the salt in sea water and sea spray alters all standard membranes or coatings. All Tribord membranes and coatings feature technology that blocks the hydrolysis phenomenon, allowing them to preserve their properties for a long time. They do not peel, and they remain waterproof and breathable for long time.
What is water resistance?
Water resistance is obtained by applying a water-resistant treatment to a material. This process prevents the water from sticking to the surface of the material, limiting its ability to absorb the water. When we add the idea of movement, the water can also slide over the material. Thanks to water resistance, the water does not soak the outer material, keeping the jacket light and allowing it to dry more quickly.
What is breathability and what is the Ret index that measures it?
A material's breathability refers to its ability to allow water vapour generated by the body (perspirations) to escape. It can be measure thanks to the Ret (or thermal evaporative resistance) test. Because it is a measure of resistance, the lower the Ret index the more breathable your clothing. Between 6 and 12 Ret: highly breathable. Between 12 and 20 Ret: breathable. Above 20 Ret: not breathable. Tribord-brand products are highly breathable, with a Ret of between 7.2 and 12.
Why use Ret as an index rather than the MVTR (moisture vapour transmission rate)?
The MVTR quantifies the mass of water vapour passing through a material over a long period of time. This index is not used because it is not useful to know that a jacket is capable of wicking away 20 litres of vapour over 24 hours. In fact, it is not realistic, as the body does not perspire in a linear fashion over such a long period. The Ret, however, which measures the immediate resistance of a material to the passage of water vapour, recreates real life, particularly when you're fighting hard to hold back a spinnaker.