Sprint Revolution Power Sox, these are resistance-training socks used to increase drag on the feet and lower legs, forcing the swimmer to produce more propulsion while maintaining race-specific mechanics.

Power Sox are typically used for:

• Acceleration work (15–25m efforts)

• Power-endurance sets (25s and 50s)

• Race-pace training while keeping stroke mechanics closer to normal swimming than some larger drag devices

• Kick and breakout development

The Sprint Revolution Power Sox package includes both a small pair and a large pair, allowing swimmers to progress the resistance level depending on the training objective. 

• Small Power Sox

  • Higher velocity work

  • Race-pace swimming

  • Technical sprint work

  • Contrast sets (Sox on → Sox off)

• Large Power Sox

  • Maximum power development

  • Starts and breakout work

  • Underwater kicking

  • Short acceleration efforts (10–25m)

  • Strength-focused sprint sets

The progression I would typically use with elite sprinters is:

1. Large Sox for force production.

2. Small Sox for power-speed transfer.

3. No Sox for race-speed execution.