Long Sleeve T-Shirts by Smartwool Add to WardrobeRemove from Wardrobe FavoriteUnfavorite Shop It Outfits Sort by featured Sort by price: high to lowSort by price: low to high Smartwool Merino 250 Base Layer Long Sleeve Crewneck Shirt $115 Free US shipping AND returns! Smartwool 250 Merino Wool Baselayer Crewneck Top $80 $100 Smartwool Merino 250 Base Layer Long Sleeve Crewneck Shirt $115 Smartwool Intraknit Merino 200 Long Sleeve T Shirt $120 Smartwool Merino Sport 150 Mountain T Shirt $48 $80 Smartwool Merino Sport 150 Mountain T Shirt $40 $80 Smartwool Intraknit Merino 200 Long Sleeve T Shirt $120 Smartwool Intraknit Merino 200 Long Sleeve T Shirt $120 Smartwool Merino 250 Base Layer Colorblock Long Sleeve T Shirt $110 Smartwool Merino Sport 150 Mtn Aurora Long Sleeve Graphic T Shirt $75 Smartwool Stripe Merino Blend T Shirt $80 Smartwool Stripe Merino Blend T Shirt $80