Ablefitness Adjustable Straps Cross-Fit Wooden Gymnastics Rings

Wooden rings are definitely the best when it comes to grip. Plastic and metal both repel sweat and oil, which creates a slippery layer between your hands and the rings. This is why people use chalk when training on those types of rings.

Wood is naturally absorbent, so it provides an ideal non-slip surface. Most people can train on wooden rings without any chalk on their hands.