Made in the USA by Kenyon Outdoors, these thermal bottoms are  made of soft, cozy, double-sided 100% polyester fleece for comfort and  warmth. Perfect as an expedition weight base layer worn beneath your  waterproof pants, you'll enjoy them equally as much while comfortably  lounging onboard your expedition vessel.
They have these Special Features:
- Soft cozy double-sided 100% polyester fleece for warmth and comfort
- Men's bottom has a fly front
- Has ribbed knit cuff