Handcrafted Waxed Canvas Bags Some of you may be asking, why waxed canvas? Whats the big deal? Waxed canvas, or ‘tin cloth’, is a canvas that has been impregnated with wax. It was developed in the early 1900’s as a waterproof alternative to denim. The particular fabric I use is Martexin which is woven here in the US with cotton that has been coated in non-hazardous, environmentally friendly wax.…