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I understand. If I was you, which I'm not, get the book and then consider what you may or may not need. The book covers footwear, belts, straps. I don't know much but it covered EVERYTHING regarding squats that I could think so.
One small point and I may be slightly wrong. Re knees they should go in the direction of your feet which should be angled out (less than 45 degrees / maybe 30) but I'm thinking that the knee cap doesn't extend over your foot. Make any sense at all? But the book for accurate info.
I don’t. I look upon people with lots of weightlifting gear on negatively.
Maybe I should get some