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Adjustable under-chin strap with buckle
Footbed: Open-cell OrthoLite for cushioning
Under Arm Vents
Crafted with a durable water-repellent finish and cozy fleece insulation
lightly insulated shoulder season layer primed for impromptu bouldering sessions
Mens Classic Thermal Merino Base Layer 1/4 Zip short sleeve shirts Adjustable under-chin strap with buckleMeet the Men's Classic Thermal Merino Base Layer 1 4 Zip from Smartwool the ultimate in warmth and comfort for your outdoor pursuits. Crafted from 100% merino wool, this slim fit base layer offers unparalleled insulation and breathability, keeping you cozy and dry no matter the activity. Its interlock knit construction and flatlock seam design ensure a smooth, chafe free wear, while the offset shoulder seams and side wrapping seams enhance mobility.
