Mount Washington Observatory

Nestled atop the Northeast's highest peak, the Mount Washington Observatory plays a crucial role in weather research and education. Their commitment to scientific excellence and outdoor exploration mirrors our own values, and we're proud to support their efforts to unlock the mysteries of mountain weather and climate. From icy summits to the trails below, our Merino wool products help equip their staff and visitors for all conditions.

In addition to our year-round sponsorship of the observatory, 10% of all MWOBS socks sales go directly to the observatory to help them continue their mission of weather research & keeping visitors to the white mountains safe.

Appalachian Mountian Club

The Appalachian Mountain Club is a cornerstone of the outdoor community in the Northeast, providing conservation, education, and recreation services for over a century. Through their extensive trail maintenance, conservation programs, and outdoor adventures, AMC ensures that future generations can explore and enjoy our natural world.

Granite Outdoor Alliance

Granite Outdoor Alliance is dedicated to strengthening New Hampshire’s outdoor industry by fostering sustainable business practices, environmental stewardship, and community engagement. They support local NH brands, outdoor recreation communities, and conservation efforts across the state.

New Hampshire Public Radio

NHPR delivers award-winning journalism, insightful storytelling, and essential news coverage throughout the Granite State. From in-depth reporting to engaging podcasts, NHPR connects New Hampshire communities through fact-based, independent media.

Maine Public Radio

Maine Public Radio keeps listeners informed with trusted news, thoughtful discussions, and engaging stories from across the state and beyond. As Maine’s NPR affiliate, they provide in-depth coverage of local issues, culture, and the great outdoors.

HikeSafe & NH Fish & GAME

HikeSafe is an essential program that promotes responsible hiking and preparedness in the White Mountains and beyond. With the combined efforts of the US Forest Service and NH Fish & Game, HikeSafe ensures that hikers are equipped with the knowledge and gear necessary for safe outdoor adventures. At Minus33, we proudly support HikeSafe and their mission, providing durable, warm, and moisture-wicking clothing to help adventurers stay safe and comfortable on the trail.

HikeSafe card holders can also submit proof of their card to receive 20% Off their order. Learn More About Our HikeSafe Program

Maine Warden Service

The Maine Warden Service plays an essential role in conservation law enforcement and search & rescue operations across Maine’s wild lands and waterways. Their commitment to keeping outdoor enthusiasts safe is unparalleled, and we are honored to support their efforts. Minus33 Merino wool garments are relied on by these brave individuals as they carry out their duties in some of the most challenging environments.

Terracea Clothing

New Hampshire based Terracea crafts high-performance outerwear designed for life on the slopes and beyond. Their commitment to quality, sustainable manufacturing aligns with our mission at Minus33. Together, we create products that ensure adventurers can push their limits in comfort and style, whether they're skiing, hiking, or braving the elements.

Guineafowl Adventure Company

Guineafowl Adventure Company offers full service guided White Mountain hiking experiences. Serving the greater Boston area, they provide transportation, gear & expert guidance to help adventurers explore with confidence. Guineafowl delivers meaningful outdoor experiences while upholding the highest standards of environmental education safety & stewardship.

New England Naturals

New England Naturals specializes in custom fur pieces like headbands, mittens, and hand muffs, alongside other natural products. Their commitment to sustainability aligns with Minus33’s values, as both companies focus on quality and eco-friendly practices. Founders Jake and Riley are passionate educators in sustainable foraging, trapping, and wild game preparation, sharing their knowledge to inspire others.

Big Woods Bucks

Big Woods Bucks is dedicated to hunting in the vast wilderness of northern New England, particularly in pursuit of elusive, mature bucks. They emphasize knowledge, patience, and the right gear to tackle the harshest conditions. We're proud to partner with Big Woods Bucks, providing rugged, reliable Merino wool apparel that ensures hunters stay warm and dry on their backcountry adventures.