This is a Sunday brunch with the guys or family outfit! I feel like you don't have to wear dress pant to wear a blazer with a dress shirt. Just throw on some plain, simple jeans and add on that beige blazer with a neutral color dress shirt.
Layers The jacket is phenomenal, boots are awesome and will coordinate with all things casual, leather backpack color coordinates well with the boots and overall outfit. here is a great mix of color and texture.