A seat includes one or more cushions secured to a shell. The cushions include a 3D printed lattice of repeating cells. The cells may include nodes interconnected by branches. The nodes may be arranged in a cubic, parallelepiped, diamond, or other arrangement. The branches may extend directly between nodes or may be bent. The branches may extend from each node to an adjacent node that is closest to its point of attachment to the each node or the branches may be curved or bent to secure to a different adjacent node. The 3D printed lattice may include 3D printed barbs formed thereon that engage receptacles in the seat shell. The 3D printed lattice may be printed with a groove that engages a fastening structure on a cover or a separate fastening element. The cover may be a perforated sheet of material or fabric.

A seat includes one or more cushions secured to a shell. The cushions include a 3D printed lattice of repeating cells. The cells may include nodes interconnected by branches. The nodes may be arranged in a cubic, parallelepiped, diamond, or other arrangement. The branches may extend directly between nodes or may be bent. The branches may extend from each node to an adjacent node that is closest to its point of attachment to the each node or the branches may be curved or bent to secure to a different adjacent node. The 3D printed lattice may include 3D printed barbs formed thereon that engage receptacles in the seat shell. The 3D printed lattice may be printed with a groove that engages a fastening structure on a cover or a separate fastening element. The cover may be a perforated sheet of material or fabric.

A seat includes one or more cushions secured to a shell. The cushions include a 3D printed lattice of repeating cells. The cells may include nodes interconnected by branches. The nodes may be arranged in a cubic, parallelepiped, diamond, or other arrangement. The branches may extend directly between nodes or may be bent. The branches may extend from each node to an adjacent node that is closest to its point of attachment to the each node or the branches may be curved or bent to secure to a different adjacent node. The 3D printed lattice may include 3D printed barbs formed thereon that engage receptacles in the seat shell. The 3D printed lattice may be printed with a groove that engages a fastening structure on a cover or a separate fastening element. The cover may be a perforated sheet of material or fabric.

A seat includes one or more cushions secured to a shell. The cushions include a 3D printed lattice of repeating cells. The cells may include nodes interconnected by branches. The nodes may be arranged in a cubic, parallelepiped, diamond, or other arrangement. The branches may extend directly between nodes or may be bent. The branches may extend from each node to an adjacent node that is closest to its point of attachment to the each node or the branches may be curved or bent to secure to a different adjacent node. The 3D printed lattice may include 3D printed barbs formed thereon that engage receptacles in the seat shell. The 3D printed lattice may be printed with a groove that engages a fastening structure on a cover or a separate fastening element. The cover may be a perforated sheet of material or fabric.

A fiber composite resin molding made of fiber composite resin including fibers and base resin, wherein fiber orientation directions of the fibers in a thickness direction of the fiber composite resin molding are different between a discretionary first region and a second region away from the first region on the surface of the fiber composite resin molding.

To provide a polyethylene film having well-balanced and excellent stiffness, low heat shrink property, and vertical tear strength. A stretched film having, in this order, a layer (a1) including an ethylene-based polymer (A) having a melt flow rate (190 C., 2.16 kg load) of 0.01 to 10 g/10 minutes and a density of 942 kg/m.sup.3 or higher as a main component, a layer (b) including an ethylene-based polymer (B) having a melt flow rate (190 C., 2.16 kg load) of 0.01 to 10 g/10 minutes and a density of 924 kg/m.sup.3 or lower as a main component, and a layer (a2) including an ethylene-based polymer (A) having a melt flow rate (190 C., 2.16 kg load) of 0.01 to 10 g/10 minutes and a density of 942 kg/m.sup.3 or higher as a main component.