Mountain Knowledge
Gear & Summit Guides
Check out the full Summit Gear & Apparel guides from RMI Expeditions, or our simplified Gear Guides below.
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Get Your Gear Ready: How to Prep for a Different Kind of Summer in the Mountains
Summer is almost here, and after a winter like this one, the mountains are going to look a little different than you're used to. The 2025-2026 season was rough for snowpack across the Pacific North...

Guide to Ice Axes and Crampons
Every mountaineer’s confidence begins with contact: what’s in your hand and what’s under your feet. Ice axes and crampons aren’t just safety devices; they’re extensions of how you move through the ...

In the mountains, a good night's sleep is a strategy. On an expedition, rest is how you recover from altitude, rebuild strength, and make smart decisions when the weather turns. A proper sleep syst...

Guide to Mountain Footwear: Choosing the Right Boots for the Mountain
Your boots are the foundation of every climb. They protect your feet, stabilize your body, and anchor you to the terrain beneath you. Whether you’re trekking to basecamp, traversing glaciers, or fr...

Layering for Mountaineers: The Complete Guide
What Is the Mountaineering Layering System? Layering is the foundation of every successful mountain climb. It’s how mountaineers adapt to environments that can swing from sun-baked moraine to sub-z...

How Whittaker Mountaineering Embraces Circular Economy
A Fresh Take on Old Gear Picture this: you’re prepping for your big climb up Mount Rainier—comparing ice axes and reading trip reports—only to realize your battered boots are one step away from spl...

Staying Protected: The Crucial Role of Sun Hoodies
High-altitude mountaineering presents a breathtaking experience but also brings the heightened risk of sun exposure. The clear, thin air at higher elevations and the reflective surfaces of snow and...

Your Essential Guide to Choosing a 4-Season Mountaineering Tent
When braving big mountain terrain for several nights or weeks, your tent isn't just a shelter—it's your lifeline. It transforms into your kitchen, sleeping quarters, gear shed, and personal sanctua...

The Evolution of Mountaineering Fabrics
It's a cold, damp morning as you zip up your hard shell and start the approach to Mt. Rainier's Muir Snowfield. As you begin sweating on the climb, you know your waterproof-breathable jacket will ...


















