I bought MSR riding underware 25 years ago, and I still use them. I bought Shift riding underware last year to replace them and they are trashed and I had to go back to my 25 year old MSR. The padding folds up in them and it takes 15 minutes to flatten it out to wear them but the elastic is still good and they support the important parts well...still.
I truely buy into the old Bell ad "If you have a $10 head, wear a $10 helmet..." but the past few years, I've had a $10 head. Last year, I got an One Industries helment, the cheapest they have and on sale. I think it is the Carbon series. It is surprisingly good quality, I like it better than my new, very expensive Answer. I will be wearing them back to back this weekend (two days of racing). This isn't really a bad so much as a I couldn't get it to work for me but , andy M2R helmet. I just couldn't get it to fit, andy size, andy model.
Chest protectors are all the same THESE DAYS (vintage stuff varied widely. My 25 year old MSR is the same as my 2.5 year old Ocelot. If you don't want your friends to see you wear Ocelot gear, peal the stickers or wear it under your jersey.
Speaking of Vintage, I swear by the Moose EZ clutch. Sure, it's ugly but it is a simple device that makes the clutch of an old bike pull like a modern YZ125 with a bad cable. I can 2 finger pull my RM400 and Penton and all my Husky's are single finger!
I am very unhappy with my EVS RS8 knee braces. They work great, are comfortable, and weight about nothing but...the traps connect with crappy little buckles that broke the first lap! My short term solution was duct tape but long term was to poprivit the buckle and just thread the velcro. It is a little more difficult but they don't come off or shift position any more. What is worse was I tried to contact EVS about it and have not had a reply which brings me to my other thing with EVS...they contacted ME about their new neck brace several years ago and I put an order in except it wasn't out yet and didn't get out for 6 more months. When it finally did, I was (am) very happy with it but they could have told me that I'd be waiting so long. I went the entire season without it.
That's enough from me for now...