Aleene's Flexible Stretchable Fabric Glue, 4 oz.. When it comes to stretchy fabrics, choose a glue that moves with you! Flexible Stretchable Fabric Glue has a flexible drying formula that’s perfect for repairing and embellishing knits, dancewear and tees. It dries clear, permanent and washable with extra give so it won’t crack with movement and wear.