The sentence you wrote: "Boxing gloves protect the boxer’s hands and soften the blow." is grammatically correct.
Here's why:
- Subject: "Boxing gloves" — this tells us what we are talking about.
- Verbs: "protect" and "soften" — these show what the gloves do.
- Objects: "the boxer's hands" (what is protected) and "the blow" (what is softened).
So, your sentence is clear and correct!