Articles are described herein. An example article may comprise a first surface comprising a first lattice. The example article may comprise a second surface at least partially spaced from the first surface. The second surface may comprise a second lattice. The first surface and the second surface may define a cavity therebetween. The first surface and the second surface may be formed as a unitary body. A configuration of the first interconnected struts, the second interconnect struts, and the third struts may be tunable to control a stiffness and ventilation of the example article.

A backpack has an air flow guide panel connected to the rear side of a rear storage pocket of the backpack such that an air flow channel is defined between opposing surfaces of the air flow guide panel and the rear storage pocket. The air flow guide panel and the pocket are shaped and arranged to define an inlet opening and an outlet opening in fluid communication with the air flow channel. The inlet opening is located adjacent the bottom of the pocket and the outlet opening is spaced apart along the height of the pocket from the inlet opening toward the top of the pocket. A blower is supported on the backpack for blowing air through the air flow channel along a flow path extending from the inlet opening through the outlet opening.

A backpack that includes a backpack body and an air moving device. The backpack body has at least one air duct formed therein. The air moving device provides an airflow to the at least one air duct. The at least one air duct is configured to deliver the airflow to a back of a wearer, which dissipates heat along the back of the wearer.

The invention relates to a backpack (10) having a stowage space (18), which on its side facing the back of a user of the backpack is delimited by a back part (20). The backpack (10) includes a net element (12) and a frame arrangement (22), which for tensioning the net element (12) is designed in such a way that an intermediate space (24) is formed between the back part (20) and the net element (12) when the net element (12) is tensioned. The backpack (10) has two shoulder straps (14, 16) for carrying the backpack (10) on the user's back. The shoulder straps (14, 16) have end areas (42, 44) that cross the intermediate space (24) and are fastened to the back part (20).

A bag, such as a backpack, includes a back panel having an edge portion, a spacing panel having a fixed edge attached to the back panel and a free edge, an adjustment device, and a lace connecting the adjustment device and the spacing panel. The adjustment device can be configured to retract the lace, thereby translating the spacing panel toward the edge portion of the back panel, thereby increasing a space between the spacing panel and the back panel. The space between the spacing panel and the back panel can be smaller in a first configuration than in a second configuration and the back panel of the bag can be curved in the second configuration.

A back system for a rucksack including a harness configured to be at least in part in contact with a user's back in use, and having a back portion of knitted construction and at least one strap extending from the back portion; and a spacing apparatus arranged to create an air gap between at least part of a rear face of the rucksack and the back portion, in use.

A backpack-type assembly may include: a body; and a base member. The body may include a cooling fan. The base member may include: a back plate attached to the body; and a harness attached to the back plate and configured to be worn on a user. The harness may include: a cooling port; and at least one shoulder belt configured to be worn on a shoulder of the user. The cooling fan may be configured to circulate cooling air into or out of the base member through the cooling port of the harness.

Backpacks with adjustably spaced ventilation systems are disclosed and, more specifically, backpacks whose ventilation systems make minimal contact with the wearer and may be easily disengaged when not desired.

A backpack and frame are disclosed, as are methods of making the frame using composite materials and compression molding. The backpack frame is designed to be at least partially internal and is of unitary construction using a resin-impregnated material, such as resin-impregnated carbon fiber sheets with selective reinforcement by interstitial layers. The frame has a mid-back portion that includes openings for independently positionable shoulder straps and a lower back portion that provides for a rotatable connection to a belt assembly. A pair of curved stay portions is contiguous with the mid-back portion of the frame and curves outwardly as the stay portions extend downwardly. The frame is preferably curved to match the curvature of the human back.

A bag, such as a backpack, includes a back panel having an edge portion, a spacing panel having a fixed edge attached to the back panel and a free edge, an adjustment device, and a lace connecting the adjustment device and the spacing panel. The adjustment device can be configured to retract the lace, thereby translating the spacing panel toward the edge portion of the back panel, thereby increasing a space between the spacing panel and the back panel. The space between the spacing panel and the back panel can be smaller in a first configuration than in a second configuration and the back panel of the bag can be curved in the second configuration.