PHD (Peter Hutchinson Designs) Mountain Software is a small company in Stalybridge UK that manufactures sleeping bags and garments "from the lightest in the world to the ultimate in extreme expedition protection." Their garments are offered in standard or custom sizing, plus options for added fill or features at additional cost. All products are sewn in their small factory after the order is placed. This review covers their new Ultra Down Pullover, which is designed to provide maximum warmth with minimal weight. Is this the ultimate down jacket for ultralight backpacking and lightweight cold weather pursuits?
ARTICLE OUTLINE
- Introduction
- Description
- Performance
- Comparisons
- Assessment
- Specifications
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Jim,
The Iclo value for this garment is 2.74. The closest equivalent warmth Montbell garment is the MB Light Down Parka at 2.80.
Phd rates this garment at 23F (-5C). My calculations yield 21F for the average male, 1 clo of base layers, sheltered from the wind, and a 2 MET camp chores metabolic rate (standing rather than the typical MET rating scenario based on sitting). PHD assumes either the addition of a sweater to the average winter base layer or a .25 MET higher metabolic rate than is the average for camp chores. At the more typical 1.75 MET activity rating this is a 30F garment.
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