Kink valve assemblies

A kink valve assembly, comprising:

• a first rigid member having a first lock portion;
• a second rigid member pivotably coupled to the first rigid member;
• an elongate kink tube extending though the first and the second rigid members;
• a mouthpiece coupled to one end of the kink tube;
• and
• an actuator having a second lock portion and coupled to the second rigid member, wherein the second lock portion of the actuator is configured to releasably engage the first lock portion of the first rigid member such that the first and the second rigid members cannot pivot relative to each other and fluid is prevented from flowing through the kink tube to the mouthpiece.

A hydration assembly, comprising:

• a bladder having a drink tube;
• a pack configured for holding the bladder;
• and
• a kink valve coupled to the drink tube of the bladder, the kink valve including:
• a first rigid member having a first lock portion,
• a second rigid member pivotably coupled to the first rigid member,
• an elongate kink tube extending though the first and the second rigid members,
• a mouthpiece coupled to one end of the kink tube, and
• an actuator having a second lock portion and coupled to the second rigid member, wherein the second lock portion of the actuator is configured to releasably engage the first lock portion of the first rigid member such that the first and the second rigid members cannot pivot relative to each other and fluid is prevented from flowing through the kink tube to the mouthpiece.