A strong mobility regime is essential if you want to improve your performance. Most box owners recommend you build your own mobility kit, so you can work through any issues at home when you can't get to the gym.
If you're not mobile enough, you're more likely to pick up injuries or plateau. The good news is we've got kit to help you with any issue, from mobility balls to foam rollers.
If you need some help figuring it all out, check out this mobility kit guide: How to Create Your Own Mobility Kit.