Apparatus and methods for retaining a foldable curtain in a stowed position. A curtain retention bracket comprises a U-shaped chambered body having high torsional stiffness and a clasp comprising a flexible strap. The clasp has one end configured to be pivotably coupled to one arm of the U-shaped chambered body and another end configured to be latchable onto the other arm of the U-shaped chambered body. The clasp can be easily opened and closed manually using one hand. The geometry of the clasp is such that forces exerted on it by the stowed curtain cause it to pull tighter closed. The U-shaped chambered body may be produced using an additive manufacturing process.