Product details:

As one of our heaviest base layer tops and best base layers for cold weather this garment uses 100percent responsibly sourced Merino wool shoulder panels and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature regulated as you enjoy high-intensity skiing hiking running and more. Specifications for Smartwool Merino 250 Baselayer 1/4 Zip - Men's: Sleeve Length: Long Sleeve Age Group: Adults Apparel Fit: Slim Gender: Male Apparel Application: Layering Shirt Style: Thermal Shirt Fabric/Material: 100percent Merino Wool Weight: 10.05 oz Application: Layering Apparel Weight: Midweight Sleeve Type: Long Sleeve Features of Smartwool Merino 250 Baselayer 1/4 Zip - Men's Slim Fit 100percent Merino wool fabric made with an interlock knit for enhanced comfort breathability thermoregulation and odor resistance Fit updated to improve functionality while enhancing aesthetics Shoulder panels eliminate top shoulder seams Flatlock seam construction designed to minimize chafing 10' (25 cm) center front zipper semi-locking slider Package Contents: Smartwool Merino 250 Baselayer 1/4 Zip - Men's Smartwool SW016355E54XS: Merino 250 Baselayer 1/4 Zip - Men's Military Olive Heather/Black Extra Small Smartwool SW016355010-S: Merino 250 Baselayer 1/4 Zip - Men's Charcoal Heather Small Smartwool SW016355E54-M: Merino 250 Baselayer 1/4 Zip - Men's Military Olive Heather/Black Medium Smartwool SW016355001-XL: Merino 250 Baselayer 1/4 Zip - Men's Black Extra Large Smartwool SW016355E65-XL: Merino 250 Baselayer 1/4 Zip - Men's Woodsmoke Heather/Charcoal Heather Extra Large Smartwool SW016355E65-M: Merino 250 Baselayer 1/4 Zip - Men's Woodsmoke Heather/Charcoal Heather Medium Smartwool SW016355E65-XXL: Merino 250 Baselayer 1/4 Zip - Men's Woodsmoke Heather/Charcoal Heather 2XL Smartwool SW016355E65-L: Merino 250 Baselayer 1/4 Zip - Men's Woodsmoke Heather/Charcoal Heather Large Smartwool SW016355E65-S: Merino 250 Baselayer 1/4 Zip - Men's Woodsmoke Heather/Charcoal Heather Small Smartwool SW016355E54-L: Merino 250 Baselayer 1/4 Zip - Men's Military Olive Heather/Black Large Smartwool SW016355092-XL: Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Extra Large Smartwool SW016355010 M: Merino 250 Baselayer 1/4 Zip - Men's Charcoal Heather Medium Smartwool SW016355E54-XXL: Merino 250 Baselayer 1/4 Zip - Men's Military Olive Heather/Black 2XL Smartwool SW016355E54-XL: Merino 250 Baselayer 1/4 Zip - Men's Military Olive Heather/Black Extra Large Smartwool SW016355092-M: Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Medium Smartwool SW016355001 L: Merino 250 Baselayer 1/4 Zip - Men's Black Large Smartwool SW016355001 S: Merino 250 Baselayer 1/4 Zip - Men's Black Small Smartwool SW016355001-XXL: Merino 250 Baselayer 1/4 Zip - Men's Black 2XL Smartwool SW016355092-S: Merino 250 Baselayer 1/4 Zip - Men's Deep Navy Small Smartwool SW016355010-XL: Merino 250 Baselayer 1/4 Zip - Men's Charcoal Heather Extra Large Smartwool SW016355010-L: Merino 250 Baselayer 1/4 Zip - Men's Charcoal Heather Large Smartwool SW016355092-XXL: Merino 250 Baselayer 1/4 Zip - Men's Deep Navy 2XL Smartwool SW016355E54 S: Merino 250 Baselayer 1/4 Zip