This review relates to Hispar 600 Down Sleeping Bag
"This bag has an unmatched warmth/weight ratio ... The draft tubes undoubtedly provide the best insulation behind the zip of all the bags tested – not a trivial detail if you face harsh conditions."
— from Carnets d'Aventures Magazine's test of 18 sleeping bags for cold conditions.
This review relates to Xero Down Jacket
"Just a quick note to thank you for the timely supply of the PHD down gear before my Mt Vinson trip. The gear was absolutely first class. I used the Xero 900 down jacket on our summit day which was -26C with a 30-40 knot wind and they were faultless."
— Mark Dixon.
"I've just returned from Vinson in Antarctica where your Xero down jacket made life a breeze."
— Lord Forsyth, former Secretary of State for Scotland.
This review relates to Xero Down Trousers
"Your down trousers were lovely to wear in the hard wind outside the tent during our ski tour last week in the Swedish mountains."
— Stefan & Susanne Grimfors.
This review relates to Xero Down Socks
"The Xero booties were great for sleeping in and I could also wear them inside my Sportivas for mooching around camp. All in all, perfect."
— Nick Lewis, Antarctic Logistics & Expeditions.