I believ you want the crossover uniform, Twin Fist, so the Adidas probably won't work for you. Well, in my opinion all of the value brands have lessened in quality recently. They likely all use the same factories in Pakistan, so it makes sense. KI and Wacoku are priced among the lowest, and I like them better than Tigerclaw or Century's regular heavy line (not Ironman). Kwon and ProForce (Asian World of Martial Arts) cost a bit more in their heavy range, but I do think the cloth is a little sturdier. Naturally, you need to get a wholesale account as a school owner to get the better pricing.
If you don't mind wearing a judo uniform, that may actually be the best value in the long term. They usually cost more than a heavyweight karate uniform, but the collar, sleeves, and pants knees are usually reinforced more strongly making the uniform more durable than the equivalent karate uniform. Many of my students elect to use the judo uniform for this very reason.