Women's Intraknit Thermal Merino Base Layer Pattern Crew SIZE:S or fast training runs

or fast training runs

FF BLAST™ MAX cushioning helps create softer landings and a more energized toe-off during your training

while added flex grooves in the outsole improve flexibility by 75%

The stretchy knit fabric puts soft-brushed Merino wool next to skin while a durable synthetic material fights the elements

Women's Intraknit Thermal Merino Base Layer Pattern Crew SIZE:S or fast training runsWonderfully patterned and even more comfortable, the Smartwool Women's Intraknit Thermal Merino Base Layer Pattern Crew uses the latest and greatest technology to help keep you warm as you wander and get active. This Smartwool base layer is 3D mapped for a near custom fit and freedom of movement, while ribbed elbows provide extra flex room. New technology allows us to seamlessly knit mesh ventilation in gender specific zones designed to help keep your