Ricosta boy’s twin strap fastening boot Marvin features a Sympatex membrane which makes them waterproof. They have scuff resistant toes and warm lining. They are manufactured using high quality leathers that are ecologically and environmentally friendly, free from hazardous preservatives and are chrome vi free. Insoles are breathable, removable and washable at 30 degrees. The PU sole is injected directly to the upper ensuring a permanent join and consists of 50 percent air making the shoe especially light, flexible and shock-absorbing.