An article of footwear comprising a sole and an upper on the sole. The sole comprises a dandelion latex foam material. The dandelion latex foam material comprises dandelion latex and at least one other natural or synthetic polymer. The dandelion latex foam material is between 20% and 80% dandelion latex.

A grounding foot-worn sandal has a sole with an upper foot-supporting surface and a lower ground-engaging surface. A strap extends upwardly over the upper surface of the sole for receiving a portion of a user's foot therein. An elongated conductive strip extends from the upper surface of the sole to the lower surface of the sole, such that the elongated strip simultaneously contacts the ground and a user's foot to provide a conductive path therebetween and ground the user with the earth's surface.

A footwear comprises a sole constituted by at least an outer sole and a inner sole, it is of the type without heel, capable of support the foot substantially parallel to the ground or with the ground contacting surface of the heel raised of not more than 20 mm compared to the metatarsal ground contacting surface, and has a configuration such as to form a bending at the metatarsal-phalangeal joint, with the phalangeal portion elastically deformable downwards.

Sandals with biomechanical foot support, robust usability and cost-effectiveness are disclosed. The footwear may comprise a biomechanical sole and a Y-shaped rubber strap anchored to the sole. The sole has a top surface including a raised contour on the medial side of the sandal, and a low profile heel cup. The raised contour on the medial side and the heel cup match the natural anatomic shape of the foot, and thus provides a biomechanical foot support. The bottom surface of the sole may be a roughed surface to provide necessary traction and friction when a wearer/user walks. The bottom surface further comprises a plurality of grooves to allow water to be expelled and increase traction.

Flip flop sandals with a barrier around a perimeter of a sole. The barrier forms a continuous loop, thereby protecting the feet from wind and water in all directions. The flip flops comprise a medial strap, a lateral strap and a toe strap attached to the sole at locations interior to the barrier. The barrier protects the feet from water splashes, puddles, wet grass and wind. The barrier height can be in the range of 0.5-4 inches or 0.7-3 inches. Alternatively, the barrier height can be at least 40% or ½ a length of the toe strap. The barrier can be made of closed cell foam or plastic film. The attachment between the sole and barrier can be water tight.

Non-toxin adhesiveless slipper includes an upper portion and a lower portion; wherein the upper portion and the lower portion are bonded with each other by an adhesive film. A processing method for bonding an upper portion and a lower portion together, including steps of: a. heat melting the EVA and the EAA to form a fluid compound, and blowing the fluid compound on a bottom surface of the upper portion to form an adhesive film; b. placing an isolated paper on the adhesive film; c. placing the upper portion into a heat-pressing machine to ensure the adhesive film and isolated paper securely attached on the bottom surface of the upper portion; d. placing a rubber sheet on a mold to process a heat pressing and then removing the remaining rubber on the contours of the mold to form the lower portion; e. placing the upper portion and the lower portion into a sectional die, and then processing the heat-pressing.

A shoe in form of a slipper or sandal, includes a body 100 adapted to have a first fluid casing 12 and a second fluid casing 14, each having an elastic property, embedded in the front and rear portions of the body, respectively, and an instep strap 120 supported to the body in such a way as to be rotated in a specific section. A rotating shaft 16 is rotated in conjunction with the instep strap, and it includes a first connecting portion connected to the first fluid casing and a second connecting portion connected to the second fluid casing and an internal passage having respective check ball seating portions formed on the inside of the first and the second connecting portions, and with check ball received in the internal passage. When the rotating shaft is inclined by rotation of the rotating shaft, the check ball closely adheres to any one of the check ball seating portions by gravity or buoyancy and regulates a fluid flow to any one of the first and the second connecting portions.

A footwear system for orthotic support comprising an insole region to which is affixed one or more detachable, repositionable receptacles that accommodate orthotic and/or foot support inserts, and optionally an additional heel receptacle. The footwear system may be usable to provide foot support in closed or open footwear.