A hat, headband or helmet formed from a material (10) comprising first and second layers (11, 12) of material and a low friction interface (13) arranged between the layers to enable sliding of the first layer of material (11) relative to the second layer of material (12).

A combination helmet and body protection device for use in contact sports and other activities requiring protection from force impacts is provided. The combination helmet and body protection device provides protection for the human body from potentially crippling forces applied to the head and upper body, comprising shoulder pad collar, a rear helmet portion, a main helmet portion, and a locking mechanism. The rear helmet portion is securely connected to the shoulder pad collar such that the rear helmet portion transfers impact forces inflicted along the helmet to the shoulder pad collar. The main helmet portion is rotatably connected to the rear helmet portion, allowing the main helmet portion to flip open along the rear helmet portion. The main helmet portion is also releasably connected to the shoulder pad collar through a locking mechanism, allowing the user to selectively position the main helmet between an open and a closed configuration.

The challenge of protecting caps from excess perspiration is solved by providing a hat liner comprising: (a) a first portion including a plurality of tabs separated by one or more gaps, the first portion dimensioned so that at least a part of it fits between, and is held by, the sweatband of a cap and one or more front panels of a hat; and (b) a second portion, directly or indirectly joined with the first portion along a length, and including at least one moisture absorbing layer. The second potion may further include at least one moisture wicking layer. The first portion may include at least three tabs defined and separated by at least two gaps. At least some of the two gaps may have a wider open end and a narrower closed end. Each of the plurality of tabs in the first potion may be provided with a plurality of lateral ridges. The second portion may be indirectly joined with the first portion via the hinge portion. The hinge portion is provided with a plurality of lateral slits.

A wearable physical shield is disclosed. The shield includes a visor; a flexible extension coupled to the visor, and a collar coupled to the flexible extension. The visor can include a visor cavity, and the flexible extension can include a flexible extension cavity, wherein a seal is located between the visor cavity and the flexible extension cavity, such that the seal at least partially restricts movement of air between the visor cavity and the flexible extension cavity. The collar is configured to be placed around a neck of a person with a single hand for moving the collar from an open position to a closed position, where first and second arms of the collar are closed around the neck of the person.

A nape pad for use with a helmet, the nape pad comprising: a base comprised of a rigid material and having an outer surface and an inner surface, a left side and a right side, and a top edge and a bottom edge, the outer surface being generally convex from the left side to the right side and having an upper portion proximate the top edge and a lower portion proximate the bottom edge, the upper portion being generally smooth and configured to extend into and slide along an inner surface of the helmet, the inner surface of the base being generally concave from the left side to the right side; a fastener coupled to the lower portion of the base and configured to releasably couple to a retention system of the helmet; and at least one compressible comfort pad coupled to the inner surface of the base.

A liner for insertion into a concavely curved inside of an associated protective helmet, in particular a bicycle helmet, which extends along a longitudinal direction from a front side to a rear side, comprises at least two anchoring points for anchoring the liner to the protective helmet. The liner is also configured to be put under a shear stress along the inside of the protective helmet by the anchoring and to thereby assume a predetermined curved contour.

A liner for insertion into a concavely curved inside of an associated protective helmet, in particular a bicycle helmet, which extends along a longitudinal direction from a front side to a rear side, comprises at least two anchoring points for anchoring the liner to the protective helmet. The liner is also configured to be put under a shear stress along the inside of the protective helmet by the anchoring and to thereby assume a predetermined curved contour.

This invention is directed to a helmet which uses compressible conical springs positioned between an outer helmet and an inner rigid liner to absorb and distribute the force of impact and thereby minimize the risk of concussion and other head injuries.

This invention is directed to a helmet which uses compressible conical springs positioned between an outer helmet and an inner rigid liner to absorb and distribute the force of impact and thereby minimize the risk of concussion and other head injuries.

A detachable pad fastening structure of a helmet includes a first fastening unit, which includes a first fastening member having a fastening hole formed therein and is disposed at an inner surface of a helmet main body. A second fastening unit includes a through-hole in the form of a slot in a detachable pad and a second fastening member formed to be movable relative to the through-hole, having at least a part protruding toward the outside of the detachable pad so as to be inserted into the fastening hole when the second fastening member is located at one side of the through-hole, and configured to be inserted toward the inside of the detachable pad so as to be removed from the fastening hole when the second fastening member is moved relative to the through-hole toward the other side of the through-hole.