The Rucking Challenge, brought to you by CPMFitnss in partnership with SISU.

Rucking is walking with a weighted vest. The challenge is simple: ruck 30 miles in 30 days. Get out on the bike trails, walk home from work, or make plans to ruck with a friend in the evening.

The $40 sign-up includes over $2500 in sponsor prizes, access to a leaderboard full of motivation and friendly competition, and weekly accountability check-ins that provide education, motivation, and pro tips on how to maximize the challenge.