UltrAspire 800ml Softflask + Lock Cap

New for 2025, the UltrAspire 800 collapsible SoftFlask + Lock Top carries 800mL of fluid. The unique wedge shape allows this SoftFlask to slide easily in and out of hydration pockets. Comes with a larger diameter 42mm top to fit ice cubes or nutrition options. 

• The ideal large volume hydration solution for running or hiking
• Features a new Lockable Cap for using horizontally in waist belts
• Soft material conforms to the space given to provide a comfortable carrying experience
• Flexible design shrinks as you drink, reducing water movement on the run
• High-flow Lockable bite valve auto-seals after each sip and includes a twist locking cap for added security
• Compatible with our new Bloddle hose system 
• Large 42mm opening makes it easy to fill with ice or nutrition mixes and easier to clean.
• 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 45g
• Capacity 800mL
• Made for UltrAspire by Hydrapak

Also available in 300mL and 500mL capacity