Stephen Seeber
Latest
The Search for a Fleece Replacement – A Close Look at Active Insulation and the role of MVTR
What is MVTR's role in active insulation garments?
Air permeability vs. moisture vapor transmission rate (MVTR): which one impacts moisture transport more in wind and rain jackets?
This study compares the performance of four jackets made with fabrics that span a wide range of air permeability rates and moisture vapor transmission rates (MVTR). The study shows that significantly greater moisture removal can be achieved as a function of jacket MVTR than jacket air permeability.
By The Numbers: How Bad is Thermal Degradation in Synthetic Insulation?
The latest findings on thermal degradation in synthetic insulation from Stephen Seeber may surprise you in this By The Numbers column.
By the Numbers: Is Synthetic Insulation Warm When Wet?
We throw some quantitative testing at an oft-repeated synthetic insulation claim to measure the thermal performance of wet insulation.
By the Numbers: Rethinking Fleece
Stephen Seeber subjects ten fleece samples to rigorous thermal testing.
By the Numbers: Thermal Performance Measurements of Synthetic Insulations
Stephen Seeber presents measurements of several market-leading insulations along with four performance metrics to help judge their performance.
By the Numbers: If You Carry a Space Blanket, Buyer Beware
Stephen Seeber tests the infrared reflective properties of space blankets.
By the Numbers: Patagonia Worn Wear Micro Puff vs. New Micro Puff
In his new column for Backpacking Light, Stephen Seeber runs thermal testing on used and new Patagonia Micro Puff jackets.
