Flexible bottles get an upgrade. The Flux is shaped like a hard bottle, compresses like a soft flask, and cuts weight by 60 percent. Topped with a spill-proof twist-cap for grab-and-go hydration, plus a bail handle to keep hydration secure in your hand or on your pack. Finish your drink, and this bottle packs down to pocket size. With the Flux, innovation fuels performance.

Details

• 60% lighter than a hard bottle
• Dual-layer film laminate construction adds structure and RF-welded
  soft walls give grip without compromising compactness
• Extremely packable, flatten and roll when empty and stow into bail
  handle
• Twist-cap with spill-proof valve for easy drinking and no leak usage
• Large 42 mm opening for backcountry water filter compatibility – the
  Katadyn® BeFree Filter (sold separately) screws on to the top allowing
  you to drink or filter directly form the bottle
• Flexible bail handle for comfortable carrying and easy attachment
• External capacity gauge allows you to track your hydration intake or
  measure out the contents
• Made of ultra-durable, abrasion resistant TPU & RF welded seams for
  superior durability and elasticity
• Wide working temperature range (can be frozen – max temp 60° C /
  140° F)
• Safe and reliable, 100% BPA & PVC free