According to Correctional Service Canada National List of Personal Property for Men Inmates can have 1 - Pair of bag gloves (no metal inserts). 

Colour: Black

Size : Large

• Neoprene heavy bag gloves from leading boxing gear producer Everlast

• Flexible and remarkably durable

• Pre-curved foam and a padded palm grip offer excellent hand protection

• Elastic wrist wrap ensures a custom fit, every training session

• Moisture-repellent inside liner keeps your hands comfortable

• Full mesh palm ensures breath-ability and comfort.

• Anti-microbial treatment fights offensive odours and bacterial growth, keeping your products safe and smelling fresh.

• Lightweight design offers speed and power

  (or similar)