Light heat and comfort throughout the day HH LIFA® Mid is a high-performance base layer that offers optimal moisture management and lightweight insulation for activities at any time of the year. HH LIFA® Mid is an advanced base layer with two-layer construction, made of 100% Lifa fiber on the skin and breathable technical fibers on the outside. In practice, an unbeatable combination for optimal moisture management, a heat that does not weigh down and comfort throughout the day. Weight: 270g Light and insulation Lifa Technology® Flow Construction 2-layer Lifa internal fibers® Stay Warm Outdoor breathable polyester flat seams