Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

Hat, helmet, and other headgear apparatus includes dry electrophysiological electrodes and, optionally, other physiological and/or environmental sensors to measure signals such as ECG from the head of a subject. Methods of use of such apparatus to provide fitness, health, or other measured or derived, estimated, or predicted metrics are also disclosed.

Individuals with special needs often struggle to put on swim caps as they may lack dexterity, strength, or coordination to pull the cap over their ears. An improved swim cap to aid such wearers includes a swim cap body to encapsulate an upper head area and ears of a wearer, a first ring near a right ear area of the cap, and a second ring near a left ear area the body. A reinforcing band is attached on an interior of the swim cap body, wherein ends of the band connect to the first ring and the second ring. The rings allow for easy gripping of the swim cap to easily pull the cap over the wearer's head and ears.

Individuals with special needs often struggle to put on swim caps as they may lack dexterity, strength, or coordination to pull the cap over their ears. An improved swim cap to aid such wearers includes a swim cap body to encapsulate an upper head area and ears of a wearer, a first ring near a right ear area of the cap, and a second ring near a left ear area the body. A reinforcing band is attached on an interior of the swim cap body, wherein ends of the band connect to the first ring and the second ring. The rings allow for easy gripping of the swim cap to easily pull the cap over the wearer's head and ears.

A watertight swim cap has a rear skullcap section which is fabricated of silicone rubber material. The skullcap section is configured to substantially cover the head of a swimmer. A front rim section of the cap is fabricated of a silicone rubber material which is softer than the material used in the skullcap section. The top edge of the rim section is fused to the bottom edge of the skullcap section to form a single integral cap which, when worn by a swimmer, provides a watertight seal between the cap and the head of the swimmer.

A watertight swim cap has a rear skullcap section which is fabricated of silicone rubber material. The skullcap section is configured to substantially cover the head of a swimmer. A front rim section of the cap is fabricated of a silicone rubber material which is softer than the material used in the skullcap section. The top edge of the rim section is fused to the bottom edge of the skullcap section to form a single integral cap which, when worn by a swimmer, provides a watertight seal between the cap and the head of the swimmer.

A swimming cap which prevents water from entering ears has a swimming cap main body; the swimming cap main body has a left side and a right side, each of which is symmetrically provided with an ear enclosing part for accommodating a human ear; each of the ear enclosing parts has an outer wall which protrudes outwards from an outer wall of the swimming cap main body; each of the ear enclosing parts has an inner wall which forms an enclosing space for enclosing the human ear which protrudes outwards from an inner wall of the swimming cap main body; each of the enclosing spaces has an outer edge which is provided with a waterproof edge in shape of an inclined trumpet at a connecting portion with the swimming cap main body. The present invention is simple and compact in structure and highly practical.

A swimming cap which prevents water from entering ears has a swimming cap main body; the swimming cap main body has a left side and a right side, each of which is symmetrically provided with an ear enclosing part for accommodating a human ear; each of the ear enclosing parts has an outer wall which protrudes outwards from an outer wall of the swimming cap main body; each of the ear enclosing parts has an inner wall which forms an enclosing space for enclosing the human ear which protrudes outwards from an inner wall of the swimming cap main body; each of the enclosing spaces has an outer edge which is provided with a waterproof edge in shape of an inclined trumpet at a connecting portion with the swimming cap main body. The present invention is simple and compact in structure and highly practical.

The present invention provides for a swimming head cap that is effectively and efficiently configured to couple with a user's head in a substantially watertight configuration unlike any known swimming head cap, while substantially maintaining the integrity of a user's hair disposed within the swimming head cap. The swimming head cap is defined by an inner layer comprising an annular shaped elastic band and an outer layer of an elastically deformable material. The material composition of the inner layer and the outer layer facilitates an easy and convenient removal process wherein no part of the swimming head cap painfully pulls or tugs the user's hair and scalp upon removal of the swimming head cap from the user's head.

The present invention provides for a swimming head cap that is effectively and efficiently configured to couple with a user's head in a substantially watertight configuration unlike any known swimming head cap, while substantially maintaining the integrity of a user's hair disposed within the swimming head cap. The swimming head cap is defined by an inner layer comprising an annular shaped elastic band and an outer layer of an elastically deformable material. The material composition of the inner layer and the outer layer facilitates an easy and convenient removal process wherein no part of the swimming head cap painfully pulls or tugs the user's hair and scalp upon removal of the swimming head cap from the user's head.