Forty Below

Field Tested · Guide Endorsed

Guide Picks

Skip the browsing — pick from the cream of the crop. Like our tagline says, we simplify outfitting.

Sold out
Purple Haze Overboots
Forty Below5.0
Purple Haze Overboots Sale price$219.95 USD

2 colors available
Camp Booties
Forty Below5.0
Camp Booties Sale price$89.95 USD

6 colors available
Alpine ATC-Guide Belay Device
Black Diamond
Alpine ATC-Guide Belay Device Sale price$54.95 USD

1 color available
Axe Protector
Black Diamond
Axe Protector Sale price$14.95 USD

1 color available
Capilene Midweight Bottoms
Patagonia
Capilene Midweight Bottoms Sale price$89.00 USD

3 colors available
Carbon Whippet Ski Pole
Black Diamond
Carbon Whippet Ski Pole Sale price$189.95 USD
Cascade Alpine Guide 1: Columbia River to Stevens Pass
Mountaineers Books
Cascade Alpine Guide 1: Columbia River to Stevens Pass Sale price$34.95 USD

1 color available
Cascade Alpine Guide 3: Rainy Pass to Fraser River
Mountaineers Books
Cascade Alpine Guide 3: Rainy Pass to Fraser River Sale price$34.95 USD

1 color available
Cascade Alpine Guide 2: Stevens Pass to Rainy Pass
Mountaineers Books
Cascade Alpine Guide 2: Stevens Pass to Rainy Pass Sale price$34.95 USD

1 color available
2026 Contact Strap Crampons
Black Diamond5.0
2026 Contact Strap Crampons Sale price$189.95 USD
Free Shipping
On orders over $93
Expert Guidance
From mountain professionals
Easy Returns
Hassle-free, always

Filters

Sort by:

557 products

Sold out
Purple Haze Overboots
Forty Below
Purple Haze Overboots Sale price$219.95 USD
5.0

2 colors available
Camp Booties
Forty Below
Camp Booties Sale price$89.95 USD
5.0

6 colors available
Alpine ATC-Guide Belay Device
Black Diamond
Alpine ATC-Guide Belay Device Sale price$54.95 USD

1 color available
Axe Protector
Black Diamond
Axe Protector Sale price$14.95 USD

1 color available
Capilene Midweight Bottoms
Patagonia
Capilene Midweight Bottoms Sale price$89.00 USD

3 colors available
Carbon Whippet Ski Pole
Black Diamond
Carbon Whippet Ski Pole Sale price$189.95 USD
Cascade Alpine Guide 1: Columbia River to Stevens Pass
Mountaineers Books
Cascade Alpine Guide 1: Columbia River to Stevens Pass Sale price$34.95 USD

1 color available
Cascade Alpine Guide 3: Rainy Pass to Fraser River
Mountaineers Books
Cascade Alpine Guide 3: Rainy Pass to Fraser River Sale price$34.95 USD

1 color available
Cascade Alpine Guide 2: Stevens Pass to Rainy Pass
Mountaineers Books
Cascade Alpine Guide 2: Stevens Pass to Rainy Pass Sale price$34.95 USD

1 color available
2026 Contact Strap Crampons
Black Diamond
2026 Contact Strap Crampons Sale price$189.95 USD
5.0
10mm Dynex Runners
Black Diamond
10mm Dynex Runners Sale priceFrom $10.95 USD
5.0
Glacier Gel
Adventure Medical Kits
Glacier Gel Sale price$15.49 USD

1 color available
Jim Whittaker: A Life on the Edge - Anniversary Edition
Mountaineers Books
Jim Whittaker: A Life on the Edge - Anniversary Edition Sale price$34.95 USD
5.0

1 color available
Lou Whittaker: Memoirs of a Mountain Guide
Mountaineers Books
Lou Whittaker: Memoirs of a Mountain Guide Sale price$18.95 USD

1 color available
Save $174.30
Men's Alpha Ascender Vest
Bight Gear
Men's Alpha Ascender Vest Sale price$74.70 USD Regular price$249.00 USD
5.0

3 colors available
Save $84.00
2025 R1 P/O Hoody
Patagonia
2025 R1 P/O Hoody Sale price$85.00 USD Regular price$169.00 USD
5.0

3 colors available
Women's Classic All-Season Merino Base Layer Bottom
Smartwool
Women's Classic All-Season Merino Base Layer Bottom Sale price$100.00 USD

2 colors available
Save $174.75
Women's Nepal Cube GTX
La Sportiva
Women's Nepal Cube GTX Sale price$524.25 USD Regular price$699.00 USD

1 color available

Your Buying Guide For

Forty Below

Still have questions? Feel free to reach out!

Carbon-neutral shipping on all orders
4632kg
shipping emissions removed
That's like...
11857
miles driven by an average gasoline-powered car
We fund innovations in...
Direct Air Capture
Bio Oil
Mineralization