Backpack and luggage systems

1. A modular carrying system, comprising:

a day bag having a front side, a back side located opposite the front side, a hollow inner portion located between the front side and the back side, a pair of shoulder straps extending away from the back side, and a first fastener arranged and configured to open and close the hollow inner portion;

a luggage bag having a front side, a back side located opposite the front side, a hollow inner portion located between the front side and the back side, and a second fastener arranged and configured to open and close the hollow inner portion;

a main coupling system having a first portion coupled to the day bag and a second portion coupled to the luggage bag, the main coupling system arranged and configured to detachably couple the day bag and the luggage bag together such that the front side of the day bag faces the back side of the luggage bag; and

a large pouch located on the back side of the luggage bag, the large pouch arranged and configured to receive at least a portion of the day bag.

2. The modular carrying system of claim 1 , wherein a lower portion of the large pouch defines a substantially rectangular shape and an upper portion of the large pouch defines a substantially ovoid shape, and wherein the lower portion defines a greater depth than the upper portion.

3. The modular carrying system of claim 1 , wherein the day bag comprises a small pouch located along at least one of a top side of the day bag and the back side of the day bag, the system further comprising an essential bag sized and configured to be detachably retained within the small pouch.

4. The modular carrying system of claim 3 , wherein the small pouch comprises a zipper closure.

5. The modular carrying system of claim 3 , further comprising an essential bag coupling system coupled to the day bag.

6. The modular carrying system of claim 5 , wherein the essential bag coupling system comprises at least one of a G hook and a fastener arranged and configured to securely couple the essential bag to the day bag.

7. The modular carrying system of claim 5 , wherein the essential bag coupling system comprises at least one of a magnetic fastener and a buckle arranged and configured to securely couple the essential bag to the day bag.

8. The modular carrying system of claim 5 , wherein the essential bag coupling system is located along a top portion of the day bag.

9. The modular carrying system of claim 8 , wherein the essential bag coupling system comprises a female end of a first buckle coupled to the top side of the day bag, a female end of a second buckle coupled to the top side of the day bag and spaced from the first buckle, a male end of the first buckle coupled to the essential bag, and a male end of the second buckle coupled to the essential bag, and wherein the female end of the first buckle coupled to the top side of the day bag is arranged and configured to receive the male end of the first buckle coupled to the essential bag and the female end of the second buckle coupled to the top side of the day bag is arranged and configured to receive the male end of the second buckle coupled to the essential bag to thereby detachably couple the essential bag to the day bag.

10. The modular carrying system of claim 3 , wherein the essential bag comprises a waist strap and a waist strap management device arranged and configured to receive at least a portion of the waist strap and thereby keep the at least the portion of the waist strap neatly tucked away.

11. The modular carrying system of claim 1 , wherein the main coupling system comprises at least one of at least one magnetic fastener, at least one buckle, and at least one zipper arranged and configured to lockably couple the luggage bag to the day bag.

12. The modular carrying system of claim 8 , wherein the main coupling system is located along a top portion of the day bag and a top portion of the luggage bag.

13. The modular carrying system of claim 12 , wherein the main coupling system is further located along a back portion of the day bag and a back portion of the luggage bag.

14. The modular carrying system of claim 1 , wherein the main coupling system comprises at least two of at least one magnetic fastener, at least one buckle, and at least one zipper arranged and configured to lockably couple the luggage bag to the day bag.

15. The modular carrying system of claim 14 , wherein the main coupling system comprises the at least one zipper located around at least a portion of a perimeter of the day bag.

16. The modular carrying system of claim 1 , wherein the luggage bag comprises a grab handle.

17. The modular carrying system of claim 16 , wherein the grab handle is located along a top portion of the luggage bag.

18. The modular carrying system of claim 16 , wherein the grab handle is located along a side portion of the luggage bag.

19. The modular carrying system of claim 1 , wherein the first portion of the main coupling system is located on at least one of a top side of the day bag and the back side of the day bag, and the second portion of the main coupling system is located on at least one of the upper portion of the large pouch and the lower portion of the large pouch.

20. The modular carrying system of claim 19 , wherein the first portion of the main coupling system located on the top side of the day bag is configured to detachably couple with the second portion of the main coupling system located on the upper portion of the large pouch, and the first portion of the main coupling system located on the back side of the day bag is configured to detachably couple with the second portion of the main coupling system located on the lower portion of the large pouch.