A well-constructed shoe deserves careful maintenance, so keep it always comfortable, resistant to water and above all to last over time. Full grain leather is a precious, natural material with exceptional properties, subject to a certain aging process and therefore requires periodic maintenance. Kayland provides some valuable and useful advice for the care of outdoor and trekking shoes in full grain leather, which are used in particularly challenging conditions.
Newly purchased new boots do not require any additional maintenance for the first excursion; however, it may be useful to lightly impregnate the skin with a specific product to ensure impermeability. Before treatment, the laces must be removed so that the emulsion or wax cream can penetrate even in the covered areas of the shoe. The tongue and the gussets of the tongue require special attention.
After use, shoes should always be exposed to fresh air and dry well. The inner insole should be removed and the lacing opened. This should not be forgotten even in the case of excursions of several days.
Very dirty full grain leather shoes should be cleaned with a brush and, if available, with warm water. They must be left to dry throughly, far from direct sources of heat, which could create tears due to skin shrinkage. A shoe-specific detergent, capable of eliminating stubborn dirt, is also recommended. Then, it is necessary to apply the emulsion or wax cream to reimpregnate the shoe.
Periodic impregnation with a protective agent prevents the absorption of water and dirt into full-grain leather. The impregnation is however predominantly a process for the protection of the skin and is therefore very important; in fact, a skin soaked in water no longer shows any transpiring activity, with the consequence of strongly influencing the climate inside the shoe - the same principle applies to very dirty shoes. The impregnation with spray or with waterproofing liquid to the water deploys all its effectiveness only after twenty-four hours and should be performed on the still wet skin immediately after cleaning.
We do not recommend the use of oils and greases, because even if they make the leather very soft and almost impermeable to water, they lose the strength of the shoe and close the pores of the skin, with consequent loss of breathable properties.
When not in use, full-grain leather shoes should preferably be stored in shoe bags or carton boxes, in a dry and well-ventilated area with a wooden shoe-spreader. Never store shoes that are still wet, in damp or wet places or inside cars, as they could be attacked by molds!
One last suggestion: even the leather lining, from time to time, should be treated with a specific lotion. This treatment prevents the salts and minerals contained in the sweat of the feet from drying the lining, with the consequence of making it fragile and hard.