Sometimes a wet base layer just can't be avoided. Soaked-based layers happen. Here is why it will happen to you.
PrimaLoft Gold outperforms Climashield Apex as the more resilient (durable) insulation, capable of retaining more of its original warmth and loft in response to repeated compression.
Moisture-wicking fabrics (base layers and underwear) are designed to move sweat away from the skin. In this study, we test if Polartec and other base layer fabrics meet manufacturer claims.
How bad does high-loft synthetic insulation (Climashield Apex and Primaloft Gold) degrade when subjected to repeated compression cycles? What's the impact on backpacking gear and apparel?
A high MVTR waterproof-breathable shell jacket may be the holy grail that can replace both a wind shirt and a rain jacket. Do they exist, and where do we find them?
In part two of this investigation, we see what happens when you crush insulation beneath a stack of concrete pavers - again and again.
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.
The latest findings on thermal degradation in synthetic insulation from Stephen Seeber may surprise you in this By The Numbers column.
We throw some quantitative testing at an oft-repeated synthetic insulation claim to measure the thermal performance of wet insulation.