It seems like Totes umbrellas are the only ones for sale in most places in the US, despite being fantastically awful. Single-use umbrellas that snap like twigs the moment the wind picks up. The $5 umbrellas you can buy from any Japanese convenience store are more robust, last longer and at a fraction the cost. I guess the advantage of these compact umbrellas is that at least they take up less space in the trash when you throw them away after getting home soaked to the skin.
Perhaps this model is more sturdy than their other products.