While the bubble umbrella maintains a consistent dome shape, variations exist primarily in size, canopy color, and mechanism type. In Japan, the "clear umbrella" variant is widely sold and used, often with simple, utilitarian designs. In the UK, brands like Fulton market the "birdcage umbrella," a style synonymous with the bubble form but sometimes featuring reinforced frames for wind resistance. In the US, the bubble umbrella is marketed as a "dome" or "bubble" umbrella, with occasional decorative prints or colored trims. Automatic opening models and windproof enhancements represent popular functional variants.