I'm looking for tires that are impossible to puncture. That can ride over nails, glass, thorns ect. I want some bulletproof, flat-resistant tires. Here my quick story. I live in LA roads can be nice at time but its rare, i mostly ride on paris-roubaix like roads in the gehto with bombs like no others. After rough portions I enter the LA River down to griffith which has lots of debris and stuff. I really hate getting flats I know how to fix them but sometimes I pinch the tubes and them I'm stuck 20 miles away from home . Also with the daylights saving and school, im usually riding in the dark wich can make it hard to fix flats. What are the best and I mean the best 700 x 23cm -25cm flat proof tires and when I mean the best, I mean the best. Also I have a budget of $60 and maybe even $70. Also I really dont care for weight or speed or comfort or any other factor just protection since I will be using this for training only. The Schwalbe Marathon Plus 25c seem good or the Continental Ultra Gatorskins 23cm, and how about the Hutchinson Atom Comp, also im not doing tire liners or better tubes or going tubeless.