X-Port Expandable Portfolios for large-format work. The 25"×37" fits 24"×36" drawings and prints, the 32"×42" fits 30"×40" exhibition prints, the 37"×49" fits 36"×48" boards and drawing sets, and the 41"×61" fits 40"×60" banners and display panels.
Each case ships folded flat and stands rigid once you slide standard foam boards (not included) into the side walls. Leave the boards in for everyday use, or fold the case flat between trips. End-panel zippers open it like a clamshell, so you can load work flat or flip through prints in place, and two front handles at different heights let you carry it with the bottom off the ground. It expands to a 6-inch gusset, and two outside pockets hold smaller pieces. Tear-proof, water-resistant 600-denier polyester, with a two-year warranty.
