The invention relates to a device for protecting the plantar padding of a foot, which comprises: a cushion (1) including a viscoelastic material, provided so as to be held against the skin of the plantar region, and covering all of the metatarsal heads and the metatarsophalangeal joints of the foot, and a resilient strip (2) attached to the cushion along two opposing transverse edges (24, 25), by a tab (21) provided so as to pass between the big toe and the adjacent toe of the foot, the strip having a width capable of entirely covering the side projections formed by the metatarsophalangeal joints of the small and big toes, a portion of the strip intended for engaging with the top of the foot including adhesive elements (22, 23) on the two surfaces thereof, provided so as to prevent the protective device from sliding on the skin when it is arranged on the foot and on the inside of a sock surrounding the foot.
