Ultraspire Soft Flask 500ml

• The ideal hand-held solution for running or hiking
• Oval welded base for easy pocket placement while on the move
• Soft material conforms to your hand to provide a comfortable carrying experience
• Flexible design shrinks as you drink, reducing water movement on the run
• High-flow bite valve auto-seals after each sip and includes a twist locking cap for added security
• Large 42mm opening makes it easy to fill with ice or nutrition mixes
• Made of ultra-durable, abrasion resistant TPU (Thermoplastic Polyurethane) Silicone, HTPE & RF welded seams for superior durability and elasticity
• Wide working temperature range (can be frozen max temp 60° C)
• Safe and reliable, 100% BPA & PVC free
• Weight 35g
• Capacity 500mL