My go-to right now is a Timmermade Thrush false bottom bag. The false bottom bag is really the way to go for me. I tend to run fairly cold, especially when inactive. I have to build a quilt wide in order to limit the drafts that come in when I toss and turn, whereas a […]
When I first built these simple, top entry, false bottom bags, I thought they were going to be limited to colder temps because they lacked ventilation. However, for my personal temperature regulation, in many different climates and scenarios, I have not found too much limitation. I’m still looking, but so far I have found there […]
The total weight of the down fill in an item is the most often used method for determining the warmth rating of that item. However, despite it’s widespread use, total fill weight is a number that is subject to so many variables that it is far too unreliable to be used accurately to determine warmth. […]
Any loose fill item needs baffles to hold that fill in place and give shape to the item. In most down garments on the market for 3-4 season use the baffles are created by sewing the inner and outer shells together. This separates the fill into separate chambers. However, at some point in time these […]
DOWN FILL COMPRESSION TEST Goal: Test whether down fill can be compressed to half it’s full loft and retain the same R-value. Footnote conclusions: Down compressed down to 4″ has a significantly lower R-value than if it was allowed to expand to it’s full loft of 8″. Down compressed to 6″ has less R-value than it does […]
Drawcord footboxes have developed a reputation for being cold, but I feel it isn’t necessarily a shortcoming that is inherent to drawcord footboxes, but a shortcoming that is inherent to a certain design of drawcord footbox that happens to be the most common. The end drawcord. An end drawcord pulls the surrounding down in, but […]
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