92% polyester, 8% spandex, Four Way Stretch, Elastic fabric makes it comfortable and flexible

V-Neck,perfect hidden inside the suit,great to as a layer of warmth under your clothes and well matched with coat and dowm jacket.

2 Pieces Thermal Underwear set Top & Bottom is suitable for cold when more warmth is required to regulate the body temperature. Added thin fleece lined is suitable for winter sports.

Fleece Lined Fabric: Inner fleece maintains body temperature and less friction to skin. It wicks moisture away from skin for drier and comfort.

These are perfect for use underneath formal or casual attire at work or for a day out, or they can be worn as comfy pajamas on cold, chilly nights.

Thermal Underwear for Men Thin Fleece Lined Thermals Men's Base Layer Long John Set Winter Warm Top & Bottom