Tailwind Rapid Hydration review

Tailwind is best known for its Endurance Fuel, but Rapid Hydration is its pure electrolyte drink, and the product page says it is meant for shorter or easier days. Each serving has 320mg of sodium, 90mg of potassium, 12mg of vitamin C, 12g of carbs and 45 calories, and it mixes with 16 to 24 oz of water. The flavors are sweetened with a touch of cane sugar, and the brand says there is no salty aftertaste and no diet sweeteners, which matters to athletes who get tired of stevia or sucralose. The 25-serving pack costs $29.99, about $1.20 a serving, and shipping in the US is free from $59. The limits are clear from the label: 320mg of sodium is modest for heavy sweaters, and with 12g of carbs it is not a fuel source for a long effort, which is what Tailwind's Endurance Fuel is for.

Who it is for

athletes who dislike salty or stevia-sweet drinks

Price

$29.99 for 25 servings, about $1.20 per serving.

$29.99 USD
Quoted from the vendor pricing page on November 13, 2026.

Key features

• 320mg sodium and 90mg potassium per serving
• 45 calories and 12g carbs per serving
• 12mg vitamin C
• Sweetened with cane sugar, no diet sweeteners
• Mixes with 16 to 24 oz of water

Strengths and weaknesses

• Strength: About $1.20 per serving
• Strength: No diet sweeteners per the product page
• Strength: Free US shipping on orders of $59 or more
• Weakness: 320mg sodium is the lowest of the athlete-focused mixes here
• Weakness: Tailwind positions it for shorter or easier days, not long races
• Weakness: Free shipping needs two packs

Key facts

• Sodium: 320mg
• Potassium: 90mg
• Calories: 45
• Carbs: 12g
• Servings: 25

Where it ranks

Tailwind Rapid Hydration is No. 5 in our Best Electrolyte Powders verdict.