Source: Player's Handbook

Prerequisite: Level 4+, Strength or Dexterity 13+

You gain the following benefits.

Ability Score Increase. Increase your Strength or Dexterity score by 1, to a maximum of 20.

Seasoned Runner. Increase your Speed by 5 feet.

Aerobic Speed. You gain a Climb Speed and Swimming Speed equal to your Speed.

Hop Up. When you have the Prone condition, you can right yourself with only 5 feet of movement. When you do, you can use a bonus action to make a melee weapon attack against a creature within Reach.

Jumper. Once per turn, you can jump 5 feet without expending movement or provoking opportunity attacks.