Men's Smartwool Intraknit™ Thermal Merino Base Layer Crew - SW019286-P43 Youth The Topo Athletic Phantom 4

The Topo Athletic Phantom 4 is perfect for daily miles

delivered via USPS mail

Updated heel fit

2 oz Support: Neutral

- Ready for the long run: Get an uninterrupted picture of your daily health and nightly sleep with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode

Men's Smartwool Intraknit™ Thermal Merino Base Layer Crew - SW019286-P43 Youth The Topo Athletic Phantom 4This minimalist style crew is anything but insignificant. Our Men's Intraknit Thermal Merino Base Layer Crew is a lightweight, super moveable top, made for all of your most extreme cold weather activities. With Merino wool yarns and gender specific ventilation perfectly placed to maximize thermoregulation and breathability during high intensity activities, it helps amplify moisture management, movement, and comfort. When you're in our best base