SOFT FLASKS
Whether you are running a 5K or pushing through the last miles of an ultra marathon, proper hydration and nutrition is essential for high performance on roads and trails. Our versatile line of soft flasks are here to help you go further.

ULTRAFLASK™ SPEED 600ML - Vest Compatible Hydration
Go big. The largest of our ultra-light series, the UltraFlask Speed 600 ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement. Topped with our newest SpeedFill™ cap feature that makes aid station refills a breeze.

Features:

• VEST PACK FIT - Soft material conforms to most hydration vests, belts or pack pockets, makes a great addition or replacement running flask.
• COMPRESSIBLE - Flexible design shrinks as you drink, reducing water movement.
• SPEEDFILL CAP - Designed for fast filling - flips open for quick refills and snaps closed for a leak-proof seal.
• CUSTOMIZABLE CAP - Choose between two cap options. Directly mount your bite valve onto the cap or insert the adjustable drink tube to create a straw cap (can be cut to any length).
• HIGH-FLOW - Easy to drink bite valve auto-seals after each sip, eliminating annoying drips.
• WIDE OR NARROW FLASK - 500ml flask features a narrow flange for skinny and longer vest pockets. For wider pockets, the 600ml flask features a wide flange for a better fit.
• LARGE OPENING - 42mm opening lets you fill the flask easily with ice and drink mixes.
• Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
• 100% BPA & PVC free, wide working temperature range (can be frozen - max temp 60° C / 140° F)

Specifications:

• Capacity: 600 ml / 20 fl oz
• Weight: 46 g / 1.6 oz
• Dimensions: 186mm x 81 mm / 7.3 x 3.2 in
• Filtration: 42mm Filter Cap Compatible
• Material: TPU, PP/POM, Silicone
• Best Use: Running, Hiking, Biking, Fitness, Nutrition 

Beyond Lifetime Guarantee
We go above and beyond with every product we make, our warranty is no different. If you experience any failures due to the product's manufacturing or materials, we'll repair or replace the item for free - for life. Whatever it takes for you to keep the adventure going.