I recently picked up the WEERTI brand’s WEERTI Thermal Underwear for Women Long Johns Women with Fleece Lined, Base Layer Women Cold Weather Top Bottom?Black S? and wanted to share my honest take on this base layer system. As a Marine veteran, I’ve worn my share of cold weather gear, and I don’t waste time on products that don’t perform. This thermal underwear falls into the category of practical winter essentials, and at $26.99, it’s priced competitively enough to warrant serious consideration if you’re dealing with cold climates or outdoor activities in harsh conditions.