Practical Survival 1L Soft Flask – Collapsible TPU Water Bottle for Running, Hiking & Outdoor Adventures

Stay Hydrated on Your Longest Adventures

The Practical Survival 1L Soft Flask is built for serious athletes and outdoor enthusiasts who demand more from their hydration gear. With twice the capacity of standard 500ml flasks, this collapsible bottle keeps you fueled through ultramarathons, long trail runs, multi-day hikes, and everything in between.

What's Included

• 1L TPU Soft Flask
• High-Flow Bite Valve with Straw
• Leak-Proof Precision-Threaded Screw Cap

Key Features

• 1 Liter (34oz) Capacity – Double the hydration of standard flasks. Measurement markings help you track intake on the go.
• 100% Leak-Proof – Precision-threaded screw cap and medical-grade silicone gasket seal tight under pressure and movement. The high-flow bite valve delivers smooth water flow with zero drips.
• BPA-Free Medical-Grade TPU – FDA food contact compliant. No chemical taste or odor, even after hours in the sun. Safe for hot and cold beverages (-4°F to 140°F / -20°C to 60°C).
• Ultra-Lightweight & Collapsible – Weighs only 1.8oz (50g) empty. Shrinks as you drink to eliminate sloshing. Folds flat to fit in your pocket when empty.
• Wide Mouth Opening – 1.4" / 3.5cm opening makes filling with water, ice, or electrolyte powder quick and easy. Brush-free cleaning.
• Versatile Carry – Fits most hydration vest pockets, running belts, and backpack side pockets. Adjustable carry loop included.
• Built to Last – Reinforced seams and durable TPU rated for 1000+ fill cycles. Resists punctures, tears, and UV degradation.

Perfect For

Trail running · Ultramarathons · Hiking · Cycling · Climbing · Camping · Travel · Gym · Everyday use

Specs

• Capacity: 1 Liter (1000ml / 34oz)
• Weight: 1.8oz (50g) empty
• Dimensions: 3.5"W x 11"H
• Material: Medical-Grade Thermoplastic Polyurethane (TPU)
• Color: Blue
• Temperature Range: -4°F to 140°F (-20°C to 60°C)
• Mouth Opening: 1.4 inches / 3.5cm
• Reusability: 1000+ fill cycles
  
  
  

  Tested for real-world use

  • Removes 99.99% of waterborne bacteria and parasites
  • Filters microplastics down to 0.1 micron
  • BPA-free; component materials meet US FDA material standards
  • Manufactured under strict quality control and performance-tested
  • Built for emergency, travel, camping, and everyday outdoor use