66% Rayon, 26% Acrylic, 8% Spandex

Double-sided Fleece Acrylic Fabric: Comparable to cashmere in heat-retention with fleece on both sides; close-fitting style does better in retaining body heat to keep you warm.

Ultra Soft: ultra-soft & smooth fleece fabric of the baselayer caresses the skin so naturally providing maximum comfort and softness.

Double-layer Knee panel: Thoughtful design for sleepwear bottom; more warmth, more durable; special care for your sensitive knee joint.

Functional Fly: Considerate design on the thermal bottom with fly opening for easy-go when nature calls

Additional Crotch Lined: Providing more room, reducing restraint & friction in your intimate area to facilitate movement freely. Note: The lable of Heather Dark Lavender thermal set is named as Heather Dark Blue, these two colors represent the same product which is dark blue slant purple. If you have any question about the color, please feel free to contact us.

DAVID ARCHY Men's Ultra Soft Winter Warm Base Layer Top & Bottom Fleece Lined Thermal Set Long John