Review on Duofold Weight Double Thermal Medium Sports & Fitness in Cycling by Joe Martin

Comparison of Duofold and FX MAXHEAT soft fleece base layers. Duofold thermal underwear consists mainly of cotton and wool. It is thicker and therefore feels relatively warm. Easily washable but with creases. Comfortable fit thanks to the loose fit. hole in the crotch. FX MAXHEAT consists of a combination of fleece on the inside and polyester on the outside. It's quite warm for how thin it seems. Washes beautifully wrinkle-free. Comfortable fit and snug stretch to show off what you've got when you want it. There is no opening in the crotch. When hiking, I plan to use the Duofold for every day. use I use FX MAXHEAT