PHD Mountain Software

A randomly generated image showing PHD gear being used in cold weather climates

Down Sleeping bags, down jackets, mountaineering clothing. Made in England. "The best custom-made down gear in the UK comes from Peter Hutchinson Designs" Sir Ranulph Fiennes

Gear by Activity

Name your activity and view the wide selection of PHD gear suited to your choice.

About Us

PHD is one of the premier designers and manufacturers of down sleeping bags, down jackets, and mountaineering clothing. Over 50 years designing for extreme high altitude and polar ventures lies behind this wide range of products for the mountain enthusiast. More

Planning a Trip?

PHD Gear Adviser helps you find the right cold weather gear for your trip. More

Design Your Own Down Jacket

Build yourself the perfect down jacket and customise every detail.


screenshot of PHD Design Your Own Down Jacket Website

Design Your Own Sleeping Bag

Try our interactive service with multiple design options and BILLIONS of possibilities.


PHD Design Your Own Sleeping Bag

Expedition News

Sir Ranulph FinnesExpedition News

The Coldest Journey Expedition relied on PHD Down Jackets, Mitts and Sleeping Bags during their attempt to be the first to cross the Antarctic continent in the polar winter.

Race CalendarPHD Race Calendar

Check out our guide to sleeping bag and clothing selection for mountain & desert marathons / adventure racing.