Footwear strobel with bladder and tensile component and method of manufacturing

An article of footwear comprising:

• a strobel including:
• a polymeric bladder defining an interior cavity and configured to retain a fluid in the interior cavity, the polymeric bladder having a peripheral flange extending around at least a portion of a perimeter of the interior cavity;
• and
• a tensile component disposed in the interior cavity and secured to opposing inner surfaces of the polymeric bladder;
• wherein;
• the peripheral flange defines a groove extending along the peripheral flange;
• the peripheral flange has a first weld and a second weld spaced apart from the first weld;
• the first weld and the second weld extend lengthwise along the peripheral flange, and the groove extends lengthwise along the peripheral flange between the first weld and the second weld;
• the first weld is inward of the groove;
• and
• the second weld is outward of the groove.