The core support system uses a single, non-segmented umbrella shaft, and the number of ribs directly affects wind resistance. The 16-rib structure is suitable for everyday use, while the 24-rib umbrella, due to the smaller spacing between ribs, forms a dense support network, allowing for an umbrella canopy diameter of up to 120 centimeters. Regarding the central shaft material, iron shafts account for 58% of the market share, while carbon fiber products are 3.7 times more expensive.
The umbrella canopy uses high-density pongee fabric, and the sun protection coating process includes two main types: black glue and silver glue. Commercial custom-made umbrellas often use 210T density fabric, which has a tear strength of over 450N and can withstand gusts of wind up to level 10. Umbrella rib material combinations include all-steel ribs and steel-aluminum mixed ribs.
In terms of portability, carbon fiber shaft models weigh less than 450g, and the EVA material handle improves grip comfort by 27%. However, compared to folding umbrellas, straight umbrellas generally have a storage length of 80-95cm and require a dedicated umbrella stand for storage.
