Caddy portability.
Less than a sleeve of golf balls. Fits in your bag's accessory pocket.
Dimensions and weight
Roughly 150 x 100 x 40mm. About 60 grams loaded. Half the weight of a sleeve of Pro V1s. Fits in standard golf bag accessory pockets, the glovebox of a car, and the cup holder of a push cart.
What it does not do
It does not waterproof. If you walk a round in the rain with it in an unzipped pocket, expect wet cardboard. V2 caddy in molded plastic addresses this; for now, keep it dry.