This $10 Lenovo Legion XL mousepad is a great value
Originally $18 and with many positive reviews.
I'm a big fan of oversized mouse pads - desk pads, some call them. Today you can pick up just such a mouse pad from Lenovo in a comfortable 900x300x3mm (31.5x11.8x0.12") size for just $10. To get this reduction from the normal price of $18, use code SAVE15ACC at the checkout. This particular model, for your reference, is the well-reviewed Legion Speed Gaming Mouse Pad XL.
User reviews on Reddit paint a convincing picture of a high-speed cloth mouse pad, with a fine weave, low palm and wrist resistance and a stitched edge for durability. They also mention the same $10 price point, so you're not getting a once-in-a-lifetime bargain, but you are getting the best price that I can find any reference to!
The one downside to this mousepad is the 300mm or 11.8 inch height, which might be a bit too short for some setups - especially those on deeper desks and for players that use lower sensitivity settings in games with a lot of vertical aiming (think Overwatch rather than Counter-Strike). For this situation, I'd recommend a 400mm high mousepad or larger such as the Xtrfy GP5 which comes in at 920x400mm or 15.8x35.4".
What kind of mouse pad are you using at the moment? Let me know in the comments below!