A panel for use in construction of a non-woven industrial textile, the panel comprising: a) an outer surface and an inner surface; b) first and second fold regions (30a, 30b), the first fold region located at a first end of the panel, the second fold region located at a second end of the panel, each fold region comprising: i) an outer edge (29a, 29b) of the panel; ii) an edge region (85a, 85b); iii) a column of loop strips (21a, 21b) and slots, the column oriented parallel to the outer edge (29a, 29b) and set adjacent the edge region (85a, 85b); and iv) a fold line (27a, 27b) substantially midway through the column of loop strips (21a, 21b) and slots, oriented parallel to the outer edge (29a, 29b); and c) a body region between the first and second fold regions (30a, 30b); wherein: the inner surface of the body region comprises a plurality of protrusions, with a land area between each protrusion; the panel is folded along each fold line (27a, 27b) such that each edge region (85a, 85b) is oriented towards the inner surface of the panel, thereby forming a folded panel (10, 11, 12, 13) in which each loop strip (21a, 21b) forms a seam loop, and each slot forms a seam loop-receiving opening (41a, 41b) for receipt of a seam loop of an adjacent folded panel; and at least one slot (41a, 41b) is dimensioned to receive at least one of the protrusions (57a, 57b). a) an outer surface and an inner surface; b) first and second fold regions (30a, 30b), the first fold region located at a first end of the panel, the second fold region located at a second end of the panel, each fold region comprising: i) an outer edge (29a, 29b) of the panel; ii) an edge region (85a, 85b); iii) a column of loop strips (21a, 21b) and slots, the column oriented parallel to the outer edge (29a, 29b) and set adjacent the edge region (85a, 85b); and iv) a fold line (27a, 27b) substantially midway through the column of loop strips (21a, 21b) and slots, oriented parallel to the outer edge (29a, 29b); and i) an outer edge (29a, 29b) of the panel; ii) an edge region (85a, 85b); iii) a column of loop strips (21a, 21b) and slots, the column oriented parallel to the outer edge (29a, 29b) and set adjacent the edge region (85a, 85b); and iv) a fold line (27a, 27b) substantially midway through the column of loop strips (21a, 21b) and slots, oriented parallel to the outer edge (29a, 29b); c) a body region between the first and second fold regions (30a, 30b); wherein: the inner surface of the body region comprises a plurality of protrusions, with a land area between each protrusion; the panel is folded along each fold line (27a, 27b) such that each edge region (85a, 85b) is oriented towards the inner surface of the panel, thereby forming a folded panel (10, 11, 12, 13) in which each loop strip (21a, 21b) forms a seam loop, and each slot forms a seam loop-receiving opening (41a, 41b) for receipt of a seam loop of an adjacent folded panel; and at least one slot (41a, 41b) is dimensioned to receive at least one of the protrusions (57a, 57b). the inner surface of the body region comprises a plurality of protrusions, with a land area between each protrusion; the panel is folded along each fold line (27a, 27b) such that each edge region (85a, 85b) is oriented towards the inner surface of the panel, thereby forming a folded panel (10, 11, 12, 13) in which each loop strip (21a, 21b) forms a seam loop, and each slot forms a seam loop-receiving opening (41a, 41b) for receipt of a seam loop of an adjacent folded panel; and at least one slot (41a, 41b) is dimensioned to receive at least one of the protrusions (57a, 57b).