The Terrain 90 traces its origins to the United States, born of the search for the most versatile ski ever designed. At the time, Christian Alary was building a factory from scratch in Park City, Utah, for the RAMP brand.
Among three unusual prototypes from the R&D lab, simple engineering concepts meant to push geometry to the extreme, this model stood out immediately from the very first tests on snow.
This ski is a geometric anomaly. It has an ultra-short 7.5 m sidecut radius (in 176 cm) combined with a 90 mm waist and a very flared sidecut (145 mm at the tip, 135 mm at the tail). This distinctive shape gives an exceptional surface area, ensuring instant float in fresh snow.
On piste, its very short radius doesn’t box it in: the ski stays intuitive, extremely playful and reacts instantly as soon as you raise the tempo. A unique take on versatility.
| Ski | Size | Dimensions (tip / waist / tail) | Turn radius (m) | Weight (g / ski) | Running length |
|---|---|---|---|---|---|
| Ligne 67 | 155 SL | 124 / 67 / 104 | 11,14 | — | 1310 |
| 165 SL | 124 / 67 / 107 | 12,50 | — | 1410 | |
| 175 GS | 115 / 67 / 97 | 17,00 | — | 1510 | |
| 185 GS | 98 / 65 / 78 | 30,00 | — | 1610 | |
| 195 GS | 01 / 65 / 78 | 30,00 | — | 1710 | |
| Ligne 78 | 152 | 124 / 78 / 105 | 11,40 | 1510 | 1280 |
| 164 | 127 / 78 / 109 | 12,40 | 1640 | 1400 | |
| 176 | 130 / 78 / 112 | 13,50 | 1820 | 1520 | |
| 188 | 132 / 78 / 113 | 15,20 | 1900 | 1640 | |
| Ligne 90 | 152 | 130 / 90 / 113 | 15,10 | 1560 | 1280 |
| 164 | 132 / 90 / 117 | 16,25 | 1690 | 1400 | |
| 176 | 137 / 90 / 119 | 17,30 | 1870 | 1520 | |
| 188 | 141 / 90 / 122 | 17,50 | 1950 | 1640 |
| Ski | Size | Dimensions (tip / waist / tail) | Turn radius (m) | Weight (g / ski) | Running length |
|---|---|---|---|---|---|
| Terrain 90 | 152 | 135 / 90 / 125 | 6,25 | 1620 | 1103 |
| 164 | 137 / 90 / 127 | 7 | 1750 | 1187 | |
| 176 | 145 / 90 / 135 | 7,50 | 1910 | 1194 | |
| 188 | 145 / 90 / 135 | 8,60 | 2050 | 1274 | |
| Terrain 102 | 164 | 146 / 102 / 131 | 14 | 1920 | 1217 |
| 176 | 147 / 102 / 132 | 16 | 2060 | 1318 | |
| 188 | 148 / 102 / 133 | 18 | 2200 | 1383 |
| Ski | Size | Dimensions (tip / waist / tail) | Turn radius (m) | Weight (g / ski) | Running length |
|---|---|---|---|---|---|
| Relief 90 | 154 | 123 / 90 / 105 | 19 | 1285 | 1300 |
| 164 | 125 / 90 / 107 | 20,20 | 1365 | 1400 | |
| 174 | 127 / 90 / 109 | 21,40 | 1450 | 1500 | |
| 184 | 129 / 90 / 111 | 22,60 | 1535 | 1600 | |
| Relief 62 | 150 | — / 62 / — | 16 | 710 | — |
| 160 | — / 62 / — | 16 | 710 | — |
| Ski | Size | Dimensions (tip / waist / tail) | Turn radius (m) | Weight (g / ski) | Running length |
|---|---|---|---|---|---|
| Vecteur 114 FR | 164 | 144 / 114 / 134 | 12,60 | 2050 | 1320 |
| 176 | 147 / 114 / 137 | 15,20 | 2200 | 1430 | |
| 188 | 149 / 114 / 139 | 16,30 | 2350 | 1530 | |
| Vecteur 83 FS | 155 | 116 / 83 / 108 | 15,10 | 1470 | 1150 |
| 165 | 116 / 83 / 108 | 17,5 | 1570 | 1250 | |
| 175 | 116 / 83 / 108 | 20 | 1660 | 1350 | |
| 188 | 116 / 83 / 108 | 22,70 | 1760 | 1450 |
Our passion, our expertise and our goal: to make high-precision skis with real soul, designed to deliver flawless on-snow behaviour and sensations. Each pair combines the rigour of a strict engineering process with the constant attention of the human hand. Made and checked one by one in our workshop, our skis combine technical precision with a handcrafted finish, for reliability you can count on.
To design our skis, we select benchmark components from across Europe. Our Austrian Waelzholz edges, cut to a wide 2 × 2.2 mm profile and anchored directly in the epoxy resin, absorb the hardest impacts while allowing for many sharpenings. The topsheet and the ultra-high-molecular-weight polyethylene base come from CPS in Germany.
A ski loses its pop when the bond between the core and the fibres wears out. That is exactly where we reinforce our skis: glass veils rather than polyester, a bonding interface and a reserve of glue. With 12 years of hindsight, the structure stays intact and performance holds over time. And because the engine is preserved, the surface can be renovated too.
Our bamboo core runs all the way to the edge, with no plastic sidewall. When the sidewalls and topsheet have taken some knocks, your pair comes back to the workshop that built it: we reshape the sidewall in solid bamboo, sharpen the edges, wax the bases and renovate the topsheet. With the engine intact, your pair can be renewed up to three times.
Each pair is made to order in our workshop in Villard-de-Lans, in the heart of the Vercors, then checked by hand before it leaves. We handle every step ourselves; the components that aren’t produced in France come from Europe: the edges from Austria, the base and the Titanal from Germany. In the 1970s, France made nearly 75% of the world’s skis: we are proud to be among the few keeping this craft alive in the mountains. And the people who advise you are the people who make your skis.
Where high-end skis usually use ash, we chose bamboo: the same mechanical strength, with far better shock absorption. It filters out vibrations on hard, chattery or spring snow, and reduces fatigue. Resistant to moisture and frost, it runs all the way to the edge instead of a plastic sidewall: more grip, more impact resistance, less plastic.
Bamboo, 4 layers of fibreglass, 2 glass veils. Versatile, lively and comfortable.
Price range: €900.00 through €1,180.00
The playful all-mountain ski, from groomed to powder.
Terrain 90
– Bamboo core
– “Racing”-style sandwich construction
– 4 layers of heavyweight fibreglass
– Structured two-layer polyamide top sheet
– Double rocker
– Wrap-around edge protecting the tip
– Very high molecular weight P-Tex® base
A ski’s success comes from product development: fine-tuning the flex and the sidecut. However many prototypes it takes, Sillage guarantees meticulous development and products with flawless behaviour on snow.
Sillage innovates and delivers a genuine step forward in ski Research and Development. Its patented technology avoids the use of traditional moulds, which require heavy investment. The money saved allows us to buy high-quality raw materials.
Most manufacturers use ash for their high-end ski cores… Why bamboo? Bamboo stands out for its shock absorption. It filters out vibrations and provides stability whatever the snow conditions. Thanks to its resistance to moisture and low temperatures, it can be left exposed on the sidewalls, which we do on all our skis, avoiding the use of ABS and allowing us to reduce our environmental impact.
What really sets Sillage apart is that it makes its skis 100% in its own factory in France. The choice of raw materials is decisive for a ski’s performance and stability. But it is modifying and assembling them ourselves that allows us to offer highly technical products. It also gives us endless responsiveness and flexibility in designing our skis.
À Sillage les personnes qui vous conseillent par e-mail ou téléphone sont celles qui produisent les skis, nous connaissons nos produits, leur conception et leur comportement par cœur, ce qui nous permet de vous orienter et de répondre au mieux à la skieuse ou au skieur que vous êtes.
In the 1970s France produced nearly 75% of the world’s skis, but the trend has reversed and almost all of France’s ski factories have disappeared.
We are proud to be one of the few ski brands to produce entirely
in France, in Villard-de-Lans in the Vercors.
Apart from certain resins that are essential to building a pair of skis, we strive to choose plastics (base and top sheet as recycled as possible) and we keep the use of non-environmentally-friendly plastics such as ABS in the sidewalls or core to a minimum.
Apart from certain resins that are essential to building a pair of skis, we strive to choose the most recycled plastics possible for the base and top sheet.
We keep to a minimum the use of plastics
that are harmful to the environment, such as ABS in the sidewalls or core, in favour of bamboo.
This new season we are continuing this effort with our packaging. We no longer use the “blisters” and bubble wrap that are sadly all too common in the industry.
Your skis will now be wrapped in paper that
comes from offcuts recovered from a local company.
And in old ski boxes collected from shops in the region.
We have chosen to make things ourselves rather than have them made by others.
My name is Christian ALARY. I am an R&D engineer and I have designed, made or had skis made on 3 continents: Europe, Asia and North America. I know the industry.
I know that developing, producing and selling a product means people travel, and travel a lot.
Engineers, designers, industrial managers, executives, sales and marketing staff travel to production sites and to points of sale.
They travel to fine-tune products, deal with problems, check quality, hold meetings or sometimes just to visit a factory.
These journeys have a real impact. Not only do people travel, products do too: prototypes in large numbers, late pre-production runs, even entire late production runs are sent by air.
The countries where products are made and where they are sold are different and far apart, as we know.
The people who produce are supporting a company, not our country.
Yes, we produce in France; no, your skis do not travel thousands of kilometres to reach you.
We choose raw materials and machines as close to home as possible. But beyond the talk of Made in France and short supply chains, which make real sense for the environment, and beyond the fact that the social contributions paid on goods made in France support our social system, we have chosen to bring back an old model that is nonetheless so logical: a product should be designed and made as close as possible to where it is sold.
Let’s be able to make things ourselves rather than have them made elsewhere, and in doing so respect our planet and our economy, which supports our social system, even if it sometimes costs a little more.
We make no compromises on quality and we manufacture exclusively in France.
Piste ski Ligne 78
Raw materials
170 €
Running costs and machinery
135 €
Labour and social contributions
182 €
Packaging
8,50 €
Transport
25 €
VAT [20%]
125 €
Great product! Thank you Sillage
A joy, very responsive on piste, a pleasure; in fresh snow a bit harder for me, I find them too long. I should have taken the size down. Thank you
Really pleased with my purchase, the skis are incredible (and really beautiful, the finish is superb). As advertised, a very playful ski, fairly demanding (don’t let it get ahead of you at first), but once tamed I had a huge amount of fun on the pistes. The very short radius allows very tight carved turns without being limited to that. The narrow waist makes edge changes super dynamic and really enjoyable, and the wide tips are very effective as soon as you go a little off-piste, or even on the big piles of snow on the pistes at the end of the day. I haven’t been able to test them in fresh snow or powder yet, that will have to wait (but I can’t wait!). The skis do tend to vibrate quite a bit when skidding hard on hard or crusty snow on piste. After 4 days of use, the front tip ends are very slightly damaged, maybe something to reinforce in future? But that takes nothing away from the quality of the product and its great performance! In short, these skis are brilliant and I’m having a whale of a time. Finally, I’d add how available Christian from Sillage was: he took the time to answer all my questions beforehand and was very flexible about my personalisation request. Exemplary delivery too. Thank you!
Pure pleasure