Harbinger Cotton Straps (amazon)
This is probably the highest return you’ll ever get from spending $9. Cheap. Effective. Tons of my lifters use them.
Leather Straps (rogue)
These are the Rolls Royce version. Well, sort of. By that I mean they’re much more luxurious. They’re still less than $20. I personally prefer the way the leather feels in my hand and believe it sticks to the bar a bit better.