Tradition within the Tomiki Aikido community leans towards the wearing of a white (bleached) judo-style uniform made of cotton or polyester-cotton mix, tied with a belt (obi) denoting rank from 7th kyu up to 1st Dan.
In general, Tomiki Aikido training sits somewhere between judo and karate in the nature of its martial practice and therefore it is common to use heavyweight karate-gi or light to medium weight judo-gi depending on preference. Both are more durable than the typical "Karate" uniform and can withstand heavy pulling.
While there are some companies that manufacture martial arts keikogi specifically for aikido training, they are few, and hard to find. Most Tomiki aikido practitioners opt instead for medium or lightweight Judogi that have a tightly woven jacket (uwagi) and heavily reinforced pants (zubon) with kneepatches as they withstand heavy grabbing, throwing and kneeling techniques better than any other uniform.
Due to the competitive nature of Tomiki Aikido practice, the wearing of hakama has been relegated to kata demonstrations and then only rarely.
Recommended dogi brands: (coming soon)