Cushioning member for article of footwear

A cushioning member for an article of footwear having an upper and a midsole configured to support the cushioning member, the upper including a substrate that opposes the midsole, the cushioning member comprising:

• a first barrier member defining a first compartment and a second compartment and being formed from a first material, the first compartment and the second compartment arranged in series along a length of the cushioning member and cooperating with one another to provide the cushioning member with a height that tapers in a direction from a posterior end of the cushioning member to an anterior end of the cushioning member;
• a second barrier member attached to the first barrier member, the second barrier member being a continuous sheet of material having a uniform surface extending a length of the first barrier member so as to cover the first compartment and the second compartment and define a first interior void and a second interior void, the second barrier member being formed from a second material different than the first material, the first barrier member and the second barrier member completely enclosing the first interior void and the second interior void;
• a first quantity of particulate matter disposed within the first interior void;
• a second quantity of particulate matter disposed within the second interior void, the first quantity of particulate matter and the second quantity of particulate matter held beneath the uniform surface of the second barrier member, the uniform surface of the second barrier member opposing a bottom surface of the substrate to provide a degree of comfort to a foot of a user by preventing the user from feeling a transition or junction between the midsole and the cushioning member;
• and wherein one of the first material and the second material is permeable and the other of the first material and the second material is impermeable.