Women's Intraknit Thermal Merino Base Layer Crew wcorerunsocks50 Stretchy Merino-blend fleece panels designed

Stretchy Merino-blend fleece panels designed to help with comfort and mobility

The signature MIZUNO WAVE® plate adds stability and guides your stride forward

Receive an overview of your sleep and training outlook as soon as you wake up — alongside HRV status and weather

The Vibram® XS Trek EVO outsole provides reliable grip and durability across wet or uneven terrain

Women's Intraknit Thermal Merino Base Layer Crew wcorerunsocks50 Stretchy Merino-blend fleece panels designedThe Smartwool Women's Intraknit Thermal Merino Base Layer Crew is built for maximum performance. The lightweight, highly flexible top is designed for any extreme cold weather activity. Made with Merino wool and featuring gender specific ventilation for optimal thermoregulation, it enhances moisture management, breathability, and comfort during high intensity pursuits. With this base layer, you're ready to tackle any adventure. Features Slim Fit 3D