Unbelievably, it works.I had to start wearing orthotic insoles, because apparently I managed to develop flat foot at the age of 46. They’re thick. My favourite, well-fitting boots were not made to accommodate an extra centimeter of thick foam, so I thought they’d be going in the rubbish. Instead, at a friend’s recommendation, I used this spray. I emptied about 1/3 of the spray into the boots, put on two pairs of socks, wrapped the insoles with plastic foil, and suffered for about eight hours. At the end of the process I was exhausted with pain and convinced I would never wear the boots again. Guess what? I’m wearing them again and they fit perfectly.I didn’t even know it was possible to stretch leather from the inside this way. Needless to say, I recommend it, although I hope not to have to buy it again!

Cumple con todo lo prometido en la descripción. Se nota que está bien fabricado y es funcional. El envío fue rápido y llegó en perfectas condiciones. Muy satisfecha con la compra. Recomendado al 100%.

Funktioniert gut, man muss allerdings dran bleiben und die DOC Martens mehrmals einsprühen und einlaufen - haltet durch! Es wird funktionieren. Seid großzügig mit dem Produkt.

It worked well on my new black leather dress shoes that are GoodYear welted. The shoes feel good quality but they were so stiff and it felt like a brick to walk in and the feet will hurt and end up having red marks.I recommend this product - spray on the inside of shoes and wear them with thick socks or even double socks. Start with doing that 1-2 hours per day at home when you just sit down or walk around the house a little bit. You can also use a hairdryer to blow some hot air on the shoes when wearing them - it will soften them.After doing the above for 2-3 times, the shoes should be fine for wearing them outside for a day. If still feels tough, just repeat the process.

Ho comprato un paio di anfibi di Nero Giardini, scarpe di ottima fattura, ma un pochino dure e non molto confortevoli. Ho spruzzato il prodotto all'inizio ed ora mi sembra di avere ai piedi delle pantofole. È uno spray miracoloso!

Fonctionne très bien !