UltrAspire
ULTRASPIRE Ultra Spire Soft Frusk 500ml
$20
Bite valve type silicon soft flask
Cap size 42mm for HYDRAPAK and the same size as other brands NATHAN and Ultimate Direction.Katadyn Befrey 0.6 / 1.0L is the same and can be installed.
● BPA -free material, pvc -free material.
● Simple plug-n-play ™ tube attachment.
Capacity: 500ml
Weight: 36g