Evolution StretchShell Pants
The Evolution StretchShell Pants are ultra-lightweight FAST&LIGHT pants designed for winter trail running, alpinism, and ski mountaineering. Weighing only 228 g (S), they offer an exceptional balance between lightness, protection, and mobility. Built with 3-layer StretchShell PRO fabric, they ensure a 15,000 mm waterproof rating, 30,000 g/m²/24h breathability, and full windproof performance.
Their minimalist design prioritizes function and lightness: fast waist adjustment, compatibility with mountaineering and ski boots, and technical details that optimize performance in snow and demanding terrain. A versatile and durable pant, created for athletes who want to go further, faster, and with the minimum weight in the mountains.
FAST&LIGHT - 228 g


Evolution StretchShell Pants
The Evolution StretchShell Pants are ultra-lightweight FAST&LIGHT pants designed for winter trail running, alpinism, and ski mountaineering. Weighing only 228 g (S), they offer an exceptional balance between lightness, protection, and mobility. Built with 3-layer StretchShell PRO fabric, they ensure a 15,000 mm waterproof rating, 30,000 g/m²/24h breathability, and full windproof performance.
Their minimalist design prioritizes function and lightness: fast waist adjustment, compatibility with mountaineering and ski boots, and technical details that optimize performance in snow and demanding terrain. A versatile and durable pant, created for athletes who want to go further, faster, and with the minimum weight in the mountains.
FAST&LIGHT - 228 g


Activity
Alpinism, Skimo, Winter Trail Running
Equipment
Adjustable waistband with elastic and quick-toggle system
Thigh pocket with YKK® zipper and glove-friendly ergonomic puller
Elastic gusset with YKK® zippers for mountaineering and skimo boots
Lower hem puller with hook to secure the ankle elastic to laces
Double reinforced eyelet at the ankle with replaceable elastic band for snow use
PFC-Free DWR exterior treatment repels rain and snow
360° reflective detailing for enhanced visibility in low light
Action Fit: slim pattern for high-intensity activities
Size
Suggested Size Reference (Height/Weight)
| cm / kg | 165 | 170 | 175 | 180 | 185 | 190 |
| 60 | S | S | S | |||
| 65 | S | S | M | M | ||
| 70 | S | M | M | M | L | |
| 75 | M | M | L | L | XL | |
| 80 | L | L | L | XL | ||
| 85 | XL | XL | XL | |||
| 90 | XL | XL |

Garment Measurements (cm.)
| A | B | C | D | |
| S | 37 | 48 | 80 | 103 |
| M | 39 | 50 | 82 | 105 |
| L | 41 | 52 | 84 | 107 |
| XL | 43 | 54 | 86 | 109 |
Weight
Size S — 228 g
Size M — 235 g
Size L — 241 g
Size XL — 249 g
Technology
StretchShell PRO 3-layer
78% polyester, 22% polyurethane, 136 g/m², providing 15,000 mm waterproof rating, 30,000 g/m²/24h breathability, and full windproof protection. Its laminated membrane and stretch construction ensure technical performance without restricting mobility, even in highly demanding activities. Laboratory Test
It is not a fully waterproof garment because the seams are not heat-sealed, but it offers high water resistance. It features a PFC-Free Durable Water Repellency (DWR) treatment that repels rain and snow without fluorinated compounds, preventing fabric saturation and maintaining breathability after prolonged use.
Maintenance
Information about care and maintenance
More information
Complete Guide to the EVO Range — The FAST&LIGHT System for Trail Running, Skimo, and Alpinism