When making repairs on heavy fabrics, such as leather, suede, sail or canopy canvas etc… using Bee’s Knees Zipper Wax makes this task so much easier! Just glide the needle through BKZW then the thread… and using a thimble , bada-bing it’s like.. ” a hot knife though butta” AND your repairs are now water resistant and non wicking! Sewing through thick fabrics should never be a problem again, when you use Bee’s Knees Zipper Wax. Waxed thread and waxed needle work best! Bee’s Knees Zipper Wax is your 100% natural solution!