The invention related to an insulating, double-knit fabric having a width and a length and comprising a first knit layer and a second knit layer coupled with the first knit layer forming a plurality of rows of lofted fibers separated by rows of air spaces. The air spaces extend along the length of the insulating, double-knit fabric for the entire length of the fabric and the lofted fibers extend in a direction having an orthogonal component with respect to the at least one of the first knit layer and the second knit layer.

The invention related to an insulating, double-knit fabric having a width and a length and comprising a first knit layer and a second knit layer coupled with the first knit layer forming a plurality of rows of lofted fibers separated by rows of air spaces. The air spaces extend along the length of the insulating, double-knit fabric for the entire length of the fabric and the lofted fibers extend in a direction having an orthogonal component with respect to the at least one of the first knit layer and the second knit layer.

A fat-burning high-waist undergarment is provided. The fat-burning high-waist undergarment may be made of thermal conducive, elastic material so as to burn fat along the portions of the wearer's body it stretches to cover. The fat-burning high-waist undergarment may have high-cut leg openings and a detachable fastener to facilitate wear by a user with bigger legs. The fat-burning high-waist undergarment may also provide one or more adhesive strip just inward of an upper torso opening and the high-cut leg openings to prevent the material from rolling during use during exercise routines.

A masterbatch is disclosed, along with associated methods, and biodegradable filaments, fibers, yarns and fabrics. The masterbatch includes 0.2 to 5 mass % CaCO.sub.3, an aliphatic polyester with a repeat unit having from two to six carbons in the chain between ester groups, with the proviso that the 2 to 6 carbons in the chain do not include side chain carbons, and a carrier polymer selected from the group consisting of PET, nylon, other thermoplastic polymers, and combinations thereof.

An apparel garment includes a polyimide aerogel or aerogel-infused insulator 12 directly bonded to at least a portion 10 of the garment. A method for bonding an aerogel to an insulator 12 for an apparel garment includes providing a polyimide aerogel component, which may be a powder or other form, and directly bonding the polyimide aerogel component to the apparel garment. The bonding may be through at least one of thermal, chemical (adhesive/solvent), hydrogen, and mechanical bonding.

An apparel garment includes a polyimide aerogel or aerogel-infused insulator 12 directly bonded to at least a portion 10 of the garment. A method for bonding an aerogel to an insulator 12 for an apparel garment includes providing a polyimide aerogel component, which may be a powder or other form, and directly bonding the polyimide aerogel component to the apparel garment. The bonding may be through at least one of thermal, chemical (adhesive/solvent), hydrogen, and mechanical bonding.

The disclosed embodiments include a blend of bison fibers, another fiber, and adhesives. The bison fibers are sheared from a bison, scoured, dehaired, blended with various other fibers and/or compositions, carded, and manufactured into insulation. The bison hairs can be categorized by diameter into one of four categories: prime, drop A, drop B, or drop C. Furthermore, bison fiber can be categorized based on length, coarseness, weight, and/or where on the bison it was sheared from. The insulation can be batted, woven, knit, loose, and/or other similar types. The insulation can be used for garments, outdoor equipment, bedding products, and/or other products. The weight of the insulation can be between 40 grams per square meter and 500 grams per square meter. The bison fiber can be blended with recycled polyester, bison fiber, wool, bast fiber, cellulose fiber, and/or synthetic fiber. The adhesives can be low-melt poly, or resin.

A garment with insulated liner including a short pant attached to an insulated undergarment. The insulated undergarment is adapted to cover and fit closely to the body of a wearer to preserve an elevated temperature of the body of the wearer under the insulated undergarment. A pair of front seams are provided to secure the short pant to the insulated garment. The front seams extend from a waist area through a pelvic area to a crotch area to prevent the insulated undergarment from drastically shifting in turbulent water.

A garment with insulated liner including a short pant attached to an insulated undergarment. The insulated undergarment is adapted to cover and fit closely to the body of a wearer to preserve an elevated temperature of the body of the wearer under the insulated undergarment. A pair of front seams are provided to secure the short pant to the insulated garment. The front seams extend from a waist area through a pelvic area to a crotch area to prevent the insulated undergarment from drastically shifting in turbulent water.

The present invention relates to breathable, vented, and insulating cold weather garments. More particularly, the present invention relates to garments with chambers to retain an insulating fill material. Perforations along the seams between the insulating chambers may achieve optimal evaporative moisture transfer from the inside (proximal to the body of a wearer) of the garment to the outside environment.