I purchased a gowell neck pillow that can be stored compactly at a travel goods specialty store in Yurakucho. I used it several times on overnight buses. I don't see any stains or spots. It fits snugly and uses authentic memory foam urethane. It's light and compact, so it's easy to use. Photo ① → It has a loop that can be hooked onto a backpack or suitcase. Size: W210mm x H120mm x D20mm Brand: gowell Color: Black Type: Neck pillow, neck pillow Material: Sweat fabric, mesh, polyester, polyurethane, memory foam urethane Features: Compact storage possible Uses: Travel, overnight bus, outdoor use Weight: Approximately 240g #gowell #MemoryFoamNeckPillow #Yurakucho #TravelGoods #MemoryFoamUrethane #Black #NeckPillow #TravelGoods #OutdoorGoods