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Mount Washington Observatory Summit Sock
Regular price
$26.99
Shipping calculated at checkout.
Color
Black
Size
Meet the official hiking sock of the Mount Washington Observatory—and now you know it was built for serious conditions. This lightweight merino wool boot sock from Minus 33 is made right in New Hampshire, where the Observatory has recorded some of the most extreme weather on Earth. Despite its lightweight construction, full terry cushioning lines the entire interior for warmth and comfort across all four seasons. Vented zones on top keep your feet cool during high-output hikes, while 3-zone elastic ensures it stays put from trailhead to summit.
Features
- 68% Merino Wool, 20% Nylon, 11% Stretch Nylon, 1% Spandex
- Lightweight construction for four-season versatility
- 10" boot height sits just below mid-calf, above tall boot tops
- Full terry cushioning throughout for warmth without bulk
- Vented zones on top for breathability during high-output activity
- 3-zone elastic at arch, ankle, and cuff keeps sock in place
- Heel and toe plating for extra durability
- Seamless toe for smooth, blister-free comfort
- Australian merino wool, made in New Hampshire, USA
Fabric & Fit
Minus 33's wool/nylon yarn technology creates a durable sock with high merino content—the best of both worlds. The lightweight knit breathes well enough for summer hiking but insulates effectively when temperatures drop. This is the sock you reach for when you're not sure what conditions you'll face.
Sizing
Available in S, M, L, and XL. Sizing runs unisex based on shoe size:
- Small: Men's 3-5.5 / Women's 4-6.5
- Medium: Men's 6-8.5 / Women's 7-9.5
- Large: Men's 9-11.5 / Women's 10-12.5
- XL: Men's 12-14.5 / Women's 13+
Color Palette
Black is a versatile neutral that works across all palettes—browse our Neutral Essentials for more.
Supporting the Observatory
A portion of every Summit Sock sale supports the Mount Washington Observatory's work in weather and climate research, science education, and preserving the heritage of the Mount Washington region.
Care Instructions
Machine wash cold on gentle cycle with like colors. Use a mild or wool-specific detergent—we recommend M33 Nikwax Wool Wash for best results. Tumble dry low. Do not use fabric softener or bleach. For long-term storage, place in an airtight container.
Warranty
These socks are backed by Minus 33's 5-year manufacturer's warranty. For any warranty claims, please contact Minus 33 directly through their website.
Complete Your Look
Browse our full Merino Wool Collection for layers that work as hard as you do.
Regular price
$26.99
Shipping calculated at checkout.
Color
Black
Size
Meet the official hiking sock of the Mount Washington Observatory—and now you know it was built for serious conditions. This lightweight merino wool boot sock from Minus 33 is made right in New Hampshire, where the Observatory has recorded some of the most extreme weather on Earth. Despite its lightweight construction, full terry cushioning lines the entire interior for warmth and comfort across all four seasons. Vented zones on top keep your feet cool during high-output hikes, while 3-zone elastic ensures it stays put from trailhead to summit.
Features
- 68% Merino Wool, 20% Nylon, 11% Stretch Nylon, 1% Spandex
- Lightweight construction for four-season versatility
- 10" boot height sits just below mid-calf, above tall boot tops
- Full terry cushioning throughout for warmth without bulk
- Vented zones on top for breathability during high-output activity
- 3-zone elastic at arch, ankle, and cuff keeps sock in place
- Heel and toe plating for extra durability
- Seamless toe for smooth, blister-free comfort
- Australian merino wool, made in New Hampshire, USA
Fabric & Fit
Minus 33's wool/nylon yarn technology creates a durable sock with high merino content—the best of both worlds. The lightweight knit breathes well enough for summer hiking but insulates effectively when temperatures drop. This is the sock you reach for when you're not sure what conditions you'll face.
Sizing
Available in S, M, L, and XL. Sizing runs unisex based on shoe size:
- Small: Men's 3-5.5 / Women's 4-6.5
- Medium: Men's 6-8.5 / Women's 7-9.5
- Large: Men's 9-11.5 / Women's 10-12.5
- XL: Men's 12-14.5 / Women's 13+
Color Palette
Black is a versatile neutral that works across all palettes—browse our Neutral Essentials for more.
Supporting the Observatory
A portion of every Summit Sock sale supports the Mount Washington Observatory's work in weather and climate research, science education, and preserving the heritage of the Mount Washington region.
Care Instructions
Machine wash cold on gentle cycle with like colors. Use a mild or wool-specific detergent—we recommend M33 Nikwax Wool Wash for best results. Tumble dry low. Do not use fabric softener or bleach. For long-term storage, place in an airtight container.
Warranty
These socks are backed by Minus 33's 5-year manufacturer's warranty. For any warranty claims, please contact Minus 33 directly through their website.
Complete Your Look
Browse our full Merino Wool Collection for layers that work as hard as you do.