Blog / Hydration & Nutrition
Best Electrolyte Drinks for Summer Endurance 2026
Summer endurance training destroys athletes who underestimate sodium loss. Science-based electrolyte picks for 85°F+ conditions, with honest reviews of LMNT, Skratch, Nuun, and Precision Hydration.
Best Electrolyte Drinks for 2026
BEST VALUE
Nuun Sport Hydration Powder - 10-Pack
$18
TOP PICK
Fluid Tactical Electrolyte Drink Mix Variety Pack
$22
GREAT OPTION
Formula 369 Electrolyte Booster
$30
PERFORMANCE PICK
Science in Sport GO Electrolyte Drink Mix Raspberry
$30
BEST UPGRADE
SaltStick Fastchews Chewable Electrolyte Tablets - Box of 12 Packets Seedless Watermelon
$42
PREMIUM PICK
Skratch Labs Electrolyte Booster Sport Drink Mix Unflavored Hydration
$45
Electrolyte mixes compared on sodium, taste, and value, all available at Backcountry.
Nuun Sport Hydration Powder - 10-Pack
Nuun Sport Hydration Electrolyte Powder Drink Mix is a perfect addition to your water bottle. This refreshing hydration drink mix hydrates better than water alone and can be used before, during, and after movem…
- ✓ Best for: Daily hydration
- ✓ Nuun
- ✓ In stock at Backcountry
Fluid Tactical Electrolyte Drink Mix Variety Pack
What Backcountry's Gearhead® experts say: "I started using Tactical during peak summer trail work days, and it made a huge difference.
- ✓ Best for: Everyday training
- ✓ Fluid
- ✓ In stock at Backcountry
Formula 369 Electrolyte Booster
What Backcountry's Gearhead® experts say:"I’ve used the Electrolyte Booster on everything from long trail runs to sweaty indoor sessions: clean ingredients, great absorption, and a noticeable difference in enduranc…
- ✓ Best for: Hot-weather efforts
- ✓ Formula
- ✓ In stock at Backcountry
Science in Sport GO Electrolyte Drink Mix Raspberry
Whether it is before a long ride or halfway through during our rest, having an electrolyte drink mix we can take to replenish and rehydrate helps us perform at our best.
- ✓ Best for: High-sweat days
- ✓ Science
- ✓ In stock at Backcountry
SaltStick Fastchews Chewable Electrolyte Tablets - Box of 12 Packets Seedless Watermelon
During hard riding and other sweat-inducing activities, proper hydration doesn't consist of just water alone. It's also critical to balance your electrolyte profile.
- ✓ Best for: Race-day mix
- ✓ SaltStick
- ✓ In stock at Backcountry
Skratch Labs Electrolyte Booster Sport Drink Mix Unflavored Hydration
What Backcountry's Gearhead® experts say:"I started adding the Electrolyte Booster Sport Drink Mix to my water bottles on long summer trail days after noticing I was cramping despite drinking consistently.
- ✓ Best for: Premium pick
- ✓ Skratch
- ✓ In stock at Backcountry
Skratch Labs Alternative: 4 Electrolyte Drinks to Try
The best Skratch Labs alternative depends on what you want to change. Choose LMNT if you want zero sugar and more salt, Nuun Sport tablets for portability, Precision Fuel PF60 if you want carbs and sodium in one bottle, and Tailwind if you want a simple all-in-one fuel. All four sit in the same price tier as Skratch Labs Hydration, and the table lists the difference from Skratch for each.
| Alternative | What is different from Skratch Labs | Budget | Buy |
|---|---|---|---|
| LMNT Zero Sugar | Zero sugar and a salt-forward profile; no carbs, so pair it with food or a carb drink | Under $50 | Check on Amazon |
| Nuun Sport tablets | Effervescent tablets with 5 electrolytes and 1 g of sugar; easy to carry | Under $50 | Check on Amazon |
| Precision Fuel PF60 | Adds 60 g of carbs and 1,000 mg sodium per litre in one drink | Under $50 | Check on Amazon |
| Tailwind Endurance Fuel | All-in-one carbs and electrolytes in a single scoop | Under $50 | Check on Amazon |
| Skratch Labs Hydration (for comparison) | Sodium, potassium and glucose in a lightly flavored powder | Under $100 | Check on Amazon |
Descriptions are drawn from each product listing. Sodium needs vary by athlete, so use the dosing guidance above (500 to 1,000 mg per hour for most, more for heavy sweaters) rather than the flavor to choose between them.
Quick Comparison Table
$18 for a Nuun Sport 10-Pack starts this lineup, which pairs each electrolyte drink with a price and the training it is aimed at.
| Product | Best For | Price | Buy |
|---|---|---|---|
| Nuun Sport Hydration Powder - 10-Pack | Daily hydration | $18 | Backcountry → |
| Fluid Tactical Electrolyte Drink Mix Variety Pack | Everyday training | $22 | Backcountry → |
| Formula 369 Electrolyte Booster | Hot-weather efforts | $30 | Backcountry → |
| Science in Sport GO Electrolyte Drink Mix Raspberry | High-sweat days | $30 | Backcountry → |
| SaltStick Fastchews Chewable Electrolyte Tablets - Box of 12 Packets Seedless Watermelon | Race-day mix | $42 | Backcountry → |
| Skratch Labs Electrolyte Booster Sport Drink Mix Unflavored Hydration | Premium pick | $45 | Backcountry → |
Frequently Asked Questions
How much sodium do I actually need during exercise?
Depends on your sweat rate and concentration. Average athletes: 500-1000mg/hour during long efforts in heat. Heavy sweaters: 1500-2000mg/hour. The only way to know for sure is a sweat test (Precision Hydration offers them). Until then, start at 500-700mg/hour and adjust based on cramping / thirst.
Is LMNT worth the premium price?
For heavy sweaters or hot conditions where you genuinely need 1000mg+ sodium, yes: LMNT's dosing is why endurance athletes pay the premium. For general training in mild conditions, Nuun Sport or Skratch Labs deliver plenty of sodium at 1/3 the cost per serving.
Can I drink too many electrolytes?
Yes, but it's harder than you think. Sodium above ~3000mg/hour intake with insufficient water can cause GI distress and paradoxically worsen hydration. Stick to matching intake to estimated losses: more isn't always better.
Should I take electrolytes on short runs?
For runs under 60 minutes in mild conditions, plain water is fine. Add electrolytes when: runs exceed 75 minutes, temperature above 75°F, you're a known heavy sweater, or you're doing intense interval work. Use our sweat rate calculator for specifics.
Related Summer Gear Guides
- Best Hydration Vests: Carry your fluids on the trail
- Best Water Bottles: Handhelds and insulated cycling bottles
- Best Energy Gels: Carbs to complement electrolytes
- Summer Heat Training Guide: Acclimation protocols for hot weather
- Skratch Labs vs Gatorade: Which sports drink is actually better