Long Sleeve Shirts by Theory Add to WardrobeRemove from Wardrobe FavoriteUnfavorite Shop It Outfits Sort by featured Sort by price: high to lowSort by price: low to high Theory Blue Irving Shirt $225 Free US Shipping! Theory Off White Sylvain Shirt $165 Free US Shipping! Theory Blue Irving Shirt $185 Free US Shipping! Theory Tan Selk Shirt $395 Free US Shipping! Theory Black Selk Shirt $395 Free US Shipping! Theory Navy Sylvain Shirt $195 Free US Shipping! Theory Black Sylvain Shirt $195 Free US Shipping! Theory Long Sleeve Button Up Shirt $181 $259 Free US Shipping! Theory Point Collar Long Sleeve Shirt $195 $278 Free US Shipping! Theory Collared Button Up Shirt $257 $367 Free US Shipping! Theory Sylvain Slim Fit Shirt $143 Theory Buttoned Up Long Sleeved Shirt $240 $343 Free US Shipping!