My blazer is from Banana Republic and I bought it years ago but you can buy this gorgeous rust colored one here.
My tshirt is also from Banana Republic. Just a simple black Tee but it has held up through multiple washes ad wears. You can buy it here.
My jeans are 7 for All Mankind from Nordstrom. Again I believe in spending more money for jeans because they are quality statement pieces that can change how a whole outfit looks. You can buy them here for only $159. Mine are 4 years old and still look brand new.