very soft  lightweight down comforter.  its definitely suited for 3 seasons.  It's "square to square" solidly box stitched.   it has sewn-in loops at each corner to help anchor it in place to any duvets that have at least two corner ties.  I've not put it on the bed yet as I plan to change from my current medium weight 100 percent down, when springtime comes.  This down comforter met all my criteria.  it arrived super fast  and well packaged. It comes in its own plastic & cloth-webbed, zippered  storage bag.  i couldn't be more pleased with this lightweight down comforter. ty.