The Manitoba Expedition Alpine Trousers are made for exposed country where rain, wind, scrub, and sharp rock can all turn up in the same trip. They give you a waterproof and windproof outer layer that can be packed down small, carried in your kit, and pulled on when the weather starts closing in.

The full length YKK Aquaguard side zips are one of the most useful details. You can get the trousers on over boots and gaiters without stripping layers off, or open them for airflow when you are working hard uphill. Two deep zipped waist pockets keep small essentials secure, while heavy duty belt loops and an over-layer fit help them sit properly over your base and insulation layers.

Protection is not just about the fabric rating. The reinforced Cordura seat and ankle cuffs help the high-wear areas handle abrasion from ground, pack contact, boots, and rough alpine terrain. A PFC-free DWR coating helps shed surface moisture, while the waterproof T400 middle layer and breathable construction help manage wet conditions without feeling like a heavy plastic shell.

Light, packable, and built with serious weather numbers, these are trousers you will notice most when the forecast turns and the ridge is still ahead.

Key Features

• Waterproof Protection: 30,000mm waterproof fabric helps keep heavy rain and alpine moisture out.
• High Breathability: 40,000g/m2/24hrs breathability helps moisture escape during active uphill movement.
• Windproof Construction: Helps protect against exposed ridgelines, cold gusts, and changing mountain weather.
• YKK Aquaguard Zips: Premium water-resistant zips help block rain without needing bulky storm flaps.
• Full Length Side Zips: Make the trousers easier to pull on over boots and gaiters.
• Reinforced Cordura Seat: Adds abrasion resistance where the trousers take the most contact.
• Reinforced Ankle Cuffs: Helps protect against boot rub, scuffs, and rough ground contact.
• Deep Zipped Waist Pockets: Keep small essentials secure and close at hand.
• Adjustable Ankle Cuffs: Button-close cuffs help hold the trouser legs neatly in place.
• Heavy Duty Belt Loops: Support a secure fit over base layers and insulation layers.
• Layer-Friendly Fit: Designed to fit over multiple layers in cold alpine conditions.
• Lightweight Packability: Packs down small so it can be carried without taking up much space.
• DWR Outer Finish: Water repellent outer treatment helps shed surface moisture.
• T400 Waterproof Layer: Middle layer adds waterproof protection within the fabric build.
• PFC-Free Treatment: Uses a PFC-free DWR treatment for water repellency.