A green non-pneumatic tire (100; 200; 300; 500) comprising: an inner ring (110; 210; 510) having a first diameter; an outer ring (120; 220; 520) having a second diameter greater than the first diameter, the outer ring (120; 220; 520) being substantially coaxial with the inner ring (110; 210; 510); support structure (130; 230; 310; 400a-c; 530) extending between the inner ring (110; 210; 510) and the outer ring (120; 220; 520), the support structure (130; 230; 310; 400a-c; 530) including a plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) extending laterally from a first side of the non-pneumatic tire (100; 200; 300; 500) to second side of the non-pneumatic tire (100; 200; 300; 500), wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) defines an opening that is visible from the first side of the non-pneumatic tire (100; 200; 300; 500), and has a single layer of reinforcement therein, wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) is in direct contact with both the inner ring (110; 210; 510) and the outer ring (120; 220; 520), wherein the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) includes at least a first loop (240a; 320a; 560a) and a second loop (240b; 320b; 560b), the first loop (240a; 320a; 560a) being in direct contact with the second loop (240b; 320b; 560b); and a plurality of fillets (150; 270a, 270b; 540) disposed between the inner ring (110; 210; 510) and the outer ring (120; 220; 520), the plurality of fillets (150; 270a, 270b; 540) including at least a first fillet (150i; 270a; 540i) and a second fillet (150o; 270b; 540o), wherein the first fillet (150i; 270a; 540i) is in direct contact with the inner ring (110; 210; 510), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b), and wherein the second fillet (150o; 270b; 540o) is in direct contact with the outer ring (120; 220; 520), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b). an inner ring (110; 210; 510) having a first diameter; an outer ring (120; 220; 520) having a second diameter greater than the first diameter, the outer ring (120; 220; 520) being substantially coaxial with the inner ring (110; 210; 510); support structure (130; 230; 310; 400a-c; 530) extending between the inner ring (110; 210; 510) and the outer ring (120; 220; 520), the support structure (130; 230; 310; 400a-c; 530) including a plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) extending laterally from a first side of the non-pneumatic tire (100; 200; 300; 500) to second side of the non-pneumatic tire (100; 200; 300; 500), wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) defines an opening that is visible from the first side of the non-pneumatic tire (100; 200; 300; 500), and has a single layer of reinforcement therein, wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) is in direct contact with both the inner ring (110; 210; 510) and the outer ring (120; 220; 520), wherein the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) includes at least a first loop (240a; 320a; 560a) and a second loop (240b; 320b; 560b), the first loop (240a; 320a; 560a) being in direct contact with the second loop (240b; 320b; 560b); and wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) defines an opening that is visible from the first side of the non-pneumatic tire (100; 200; 300; 500), and has a single layer of reinforcement therein, wherein each of the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) is in direct contact with both the inner ring (110; 210; 510) and the outer ring (120; 220; 520), wherein the plurality of loops (240a, 240b; 320a, 320b; 560a, 560b) includes at least a first loop (240a; 320a; 560a) and a second loop (240b; 320b; 560b), the first loop (240a; 320a; 560a) being in direct contact with the second loop (240b; 320b; 560b); and a plurality of fillets (150; 270a, 270b; 540) disposed between the inner ring (110; 210; 510) and the outer ring (120; 220; 520), the plurality of fillets (150; 270a, 270b; 540) including at least a first fillet (150i; 270a; 540i) and a second fillet (150o; 270b; 540o), wherein the first fillet (150i; 270a; 540i) is in direct contact with the inner ring (110; 210; 510), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b), and wherein the second fillet (150o; 270b; 540o) is in direct contact with the outer ring (120; 220; 520), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b). wherein the first fillet (150i; 270a; 540i) is in direct contact with the inner ring (110; 210; 510), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b), and wherein the second fillet (150o; 270b; 540o) is in direct contact with the outer ring (120; 220; 520), the first loop (240a; 320a; 560a), and the second loop (240b; 320b; 560b).