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Baseball Pitchers

Intended Use

  • Reduce fatigue and improve pitching performance by enhancing recovery between innings. Our intermittent negative pressure compression sleeves (recovery sleeves) may improve pitcher’s endurance by delaying the onset of fatigue when throwing a baseball.
  • Our recovery sleeves provide a tight fit and feel good. While improving cooling through your palm using an inside out cooling technique.
  • After throwing a baseball, cool your arm between innings to reduce fatigue. Use heat immediately after cooling and before throwing a baseball again to re-warm your hand and help you regain feel of the baseball.

Directions – How to Use

  1. Prepare: Refrigerate cold packs at 35-50 °F before use, transport in cooler. If applying heat, activate your heat pack 30 minutes before use and use their instructions.
  2. Use: Insert your pitching arm and cooling pack into the recovery sleeve (logo facing out) between innings. Hold the cooling pack in your palm and allow it to overlap onto your forearm. (Leave your fingers unexposed to direct contact with the cooling pack).
  3. Secure the top of the recovery sleeve with the attached strap to prevent air from escaping and to seal the recovery sleeve.
  4. Squeeze the suction pump until air is completely removed from inside of the recovery sleeve.
  5. Periodically squeeze the suction pump to remove air and hold the negative pressure.
  6. Use one cold pack stored between 40-50°F per inning. Aim for approximately 5 minutes of cooling between innings.
  7. Remove your arm from the sleeve and apply heat directly to your hand before you resume throwing. Aim for approximately 2 minutes of re-warming. (Note if you do not have a heat source, skip this step).
  8. Repeat as needed. After use, turn your sleeve inside out to dry. Put your cold packs back into the refrigerator to re-use.

Please note

  • Seal the recovery sleeve at the top of the arm and make sure that no undershirts prevent a complete seal. The sleeve should maintain direct contact with the skin of the arm. Otherwise air will leak and prevent negative pressure compression.
  • Cold packs should not be frozen or applied at a temperature colder than 40°F. This will cause the capillaries in the palm to constrict, which will prevent the removal of heat and slow blood flow. However, if it is an extremely hot day and you will be applying your cold packs with an elevated body temperature, then you can apply a colder temperature without the negative side effects of constriction and slowing of blood flow.
  • Refrigerated cold packs are good for 5-10 minutes (or until roughly 65°F), then should be switched for a new cold pack. One heat pack is good for roughly 10 hours with temperatures between 100-160°F. Remove immediately if too hot. If heat packs are stored in a sealed zip lock bag, you may be able to get more than one use.



The below references relate to in game recovery strategies that pitchers use during games or between innings. These references are  NOT for our product. But we would like to bring to your attention out of the box ideas and resources that may make you consider other out of box solutions.

-Study on Cooling Between Innings:

Eight amateur male baseball pitchers applied 4 minutes of wet ice cooling to their forearms and shoulders between innings which resulted in an increase in average pitch speed over 5 innings (12 max effort pitches per inning). The greatest increase in average pitch speed occurred in the 4th and 5th innings when using the cooling intervention. This shows that intermittent cryotherapy can slow the loss of velocity in pitchers as pitch counts rise. The use of intermittent cooling between innings also improved the pitchers perceived recovery and rate of exertion. The authors note that pitchers typically wear towels or a jacket on their pitching arm to keep the arm loose and warm, but this practice contradicts the current scientific evidence.


Bishop SH, Herron RL, Ryan GA, Katica CP, Bishop PA. “The Effect of Intermittent Arm and Shoulder Cooling on Baseball Pitching Velocity.” J Strength Cond Res. 2016 Apr;30(4):1027-32. Abstract:  | Full text: