It is essential to maintain the proofing levels on all walking boots and shoes. The act of reproofing and cleaning outdoor footwear will pro long the life span of the footwear by keeping the footwear dry and clear of "drying out" and try and prevent the leather or fabrics becoming tired and cracking, footwear with waterproof linings such as gore tex, sympatex or hydro tex amongst the 100's of others will not function properly with out the outer fabrics being treated with proofing agents.