I could not find this stated concisely anywhere, so I thought i would post. For example Enlightened Equipment Revelation quilts spec inches of loft for down, but only Climashield oz per square-yard for the synthetic variant. Using Loft-thickness from the various widths listed at RipStopByTheRoll, here’s a regression for other Climashield APEX actual loft heights:
A few notes:
- loft thickness scales with weight per sq yard (makes sense, but good to see 3-nines for the R^2). So, a 2 oz/sqyd is ~exactly half as thick as a 4 oz/sqyd.
- I didn’t bother adding a zero-intercept, but as expected the intercept is near zero (.01 == 1/100 of an inch)
- to calculate: actual_thickness = 0.2382 * weight_per_sqyd + 0.0187
- 2 oz/sqyd –> 0.5″ thick
- 4 oz/sqyd –> 1″ thick
- 6 oz/sqyd –> ~1.5″ thick
- 8 oz/sqyd –> 2″ thick
- references:
- RSBTR product listing for 10 oz/sq-yard Climashield apex
- they currently (July 2018) have data for 2.5, 3.6, 5, and 10 oz/sqyd APEX.
- EE down loft thickness spec (my cause for wanting these numbers)
- RSBTR product listing for 10 oz/sq-yard Climashield apex
