Comparison Doppler 72066B vs Unit Wind

The folding features and dimensions of the umbrella primarily depend on the type.

— Cane. The classic variety of umbrellas, historically the first to appear. Its main distinguishing feature can be called an awkward central rod, which usually has a rather large length; due to its size, many umbrellas of this type can also be used as an additional support when folded (hence the name). In addition to the possibility of additional use (which, however, requires caution, because not all canes are strong enough), cane umbrellas have other advantages over folding ones. So, they are stronger and more reliable, and the dome shape provides better moisture repellency and reduces the drying time of the fabric. The main disadvantage of such models can be called large dimensions when folded — the umbrella will not even fit in every suitcase, not to mention smaller bags. Therefore, this type is more of an "urban" than a "road" option.

— Foldable. Such umbrellas can have different designs, but all of them are distinguished by a folding central stem with several telescopic sections (see below). The main advantage of this type over canes is obvious: folding models are much more compact and easier to transport, and some of them are “packed” so tightly that they can even fit in a small handbag. On the other hand, the design of such products is more complicated, which increases...the price and reduces reliability; in addition, they are more likely to absorb moisture (if the material of the dome allows it, see below) and dry longer.

The purpose determines the category of people for which the umbrella is designed.

— Male. Traditional men's umbrellas have a strict, discreet design, which usually goes well with a business style.

— Female. Umbrellas specially designed for women are usually designed to match, often with unusual colours, patterns, and the like.

— Children's. Children's umbrellas are distinguished primarily by their characteristic bright design with variegated colours; they can also carry drawings — for example, with popular cartoon or comic book characters. Also, many of these models are smaller than "adults" — otherwise it would be inconvenient for a child to use an umbrella.

— Unisex. Umbrellas without a pronounced "gender", equally well suited for both men and women. They can have a different design — from restrained to quite bright and catchy.

Material from which the umbrella frame is made. In this case, "frame" primarily refers to the central rod, although the ribs are often made of the same material if not specified otherwise (see "Rib Material").

— Steel. One of the most popular options among modern umbrellas. Steel offers good strength and elasticity. It's worth noting that different types and grades of this material can be used in umbrellas, so the actual characteristics of a specific steel frame are directly related to the price category of the product. Nevertheless, steel is used even in high-quality premium-class models. Among its "global" drawbacks is its rather considerable weight.

— Aluminum. Aluminum alloys used in umbrellas are noticeably lighter than steel but less durable. They can also have different characteristics, usually directly related to the price category of the respective model. However, in general, this material is considered less reliable and thus is mostly found in entry-level and mid-range umbrellas.

— Fiberglass. Fiberglass combines corrosion resistance, elasticity, and stable performance in cold conditions: in gusts of wind, such ribs spring back to give the canopy its shape without "bending memory," and they withstand moisture and salty mist without coatings.

— Carbon fiber. A carbon fiber frame provi...des maximum rigidity with minimal weight, precise maintenance of the canopy’s geometry, and resistance to moisture and salt mist. In gusty winds, such a frame sways less, quickly returns the canopy to its original position, and is therefore in demand in premium storm and golf umbrellas, as well as ultra-light travel models. The durability is directly dependent on the quality of the resin, the evenness of the coating, and the precision of the joints. Therefore, manufacturers use protective lacquer and UV stabilization; carbon is more sensitive to point impacts and stress concentrators, breaking "dry" without long warning bends.

— Wood. Wood has an attractive appearance but is weaker than metal. Therefore, it is mainly used as a design material in some cane umbrellas (see "Type")—even in such models, typically only the central rod is made of wood, while the other parts are metallic.

The material from which the umbrella's ribs are made. It may differ from the frame material (see the corresponding section), which is why this parameter is listed separately.

— Steel. One of the most common materials for ribs. Modern umbrellas may use different grades of steel, varying in price and quality; typically, this aspect directly correlates with the umbrella's price category. However, in any case, this material is quite strong, flexible, reliable, and durable, and is relatively inexpensive. The main disadvantage of steel is its comparatively large weight.

— Aluminum. Compared to steel, aluminum is distinguished by a lower weight on the one hand, and relatively low strength on the other. Consequently, it is relatively rare, mainly found in children's umbrellas and budget "adult" models.

— Fiberglass. Fiberglass ribs combine high flexibility, corrosion resistance, and cold resistance: in strong winds, such ribs spring back and restore the canopy shape without a "bend memory," and do not become brittle in freezing temperatures. This has led to their popularity in storm and golf umbrellas, as well as urban walking canes prioritizing wind resistance. In comparison: with steel, fiberglass is noticeably lighter and does not rust, but falls short in "edge stiffness" and is more likely to break than bend under critical impact; with aluminum, i...t excels in elasticity and resistance to inverting, avoiding permanent folds, although it might be slightly heavier at equal stiffness; relative to carbon fiber, fiberglass is more ductile and "tougher" against impact, cheaper and thicker at the same level of stiffness, while carbon is lighter and stiffer for premium storm models but more expensive and breaks "on snap," without warning deformations.

— Carbon Fiber. Carbon fiber ribs have the maximum stiffness-to-weight ratio: the canopy maintains its shape better in gusty winds, "flutters" less and returns to its original position more quickly with a compact rib diameter. The material is resistant to corrosion but requires high-quality resin and protective lacquer for UV resistance and micro-crack prevention at the joints. This solution is found in premium storm and golf umbrellas, as well as ultra-light travel models, where minimal weight and precise geometry are important. Compared to fiberglass, carbon fiber is noticeably lighter and stiffer at the same thickness, providing better wind resistance and sharper edge shape, but is less ductile and breaks without warning bends when overloaded, also being more expensive; fiberglass is more elastic, tolerates frequent inversions and targeted impacts better, though with a slight loss of "sharp" stiffness.

The diameter of the umbrella dome when unfolded. The larger the diameter of the dome, the more reliably it will protect you from rain and the easier it will be to place one more person under the umbrella. On the other hand, a wide umbrella can be uncomfortable in tight spaces — for example, in the flow of pedestrians on a busy street — and when folded it will take up more space. Therefore, it does not always make sense to choose the largest of the available options.

The minimum diameter for an "adult" umbrella (see "Destination") is considered to be about 80 cm. Most models are in the range of 90 – 110 cm — this provides a good degree of protection with ease of movement. And in the largest modern products, the diameter of the dome can reach 150 cm.

The length of the umbrella when folded. For the decomposed one, this parameter is not specified, because is not critical, but when transporting a closed umbrella, it is the length that is the most important dimension.

The length of cane umbrellas (see "Type") is, by definition, the same when open or closed; most often it is 60 – 90% of the dome diameter (see above). But folding models of the same diameter can vary markedly in length, and here the choice depends on the situation: on the one hand, more compact umbrellas are more convenient to carry, on the other hand, they are less reliable and more complex in design, and also cost more.

The material of the dome is a canopy stretched between the spokes of the umbrella.

— Polyester. Synthetic material, the most popular among modern umbrellas. It has good strength and density, as well as water-repellent properties (although in its pure form it still gets wet sooner or later); in addition, it is resistant to temperature extremes and ultraviolet radiation. It is also worth noting that various additives can be used in polyester domes, which can significantly change the appearance and properties of the fabric — for example, it can easily be given a resemblance to silk or satin, provide additional water-repellent properties, etc. Therefore, we can say that such umbrellas are very diverse, and the properties of the dome largely depend on the price category of the product.

— Nylon. Synthetic material, somewhat similar to polyester, but cheaper — and in every sense: it is inexpensive, but it loses in a number of characteristics. In particular, nylon is not so strong and reliable, besides it is less pleasant to the touch, and after drying it can “sit down”. It is used mainly in low-cost models of umbrellas.

— Eponge. Cotton or silk fabric, characterized by an original surface texture — it resembles a sponge (hence the name — from the French eponge). However, unlike a regular sponge, pongee practically does not absorb moisture — on the contrary, it has excellent water-repellent properties and dries quickly. At the same time, the fabric has a...n original appearance, is pleasant to the touch, and its price is low, which makes it possible to use this material even in relatively inexpensive umbrellas.

— Silk. Silk provides the product with a luxurious appearance, but loses to other materials in terms of strength, and also gets very wet. As a result, this material is usually used in umbrellas from the sun (see "Application"), and among the "rain" is almost never found.

— PVC film. Distinctive features of a film based on polyvinyl chloride (PVC) are complete imperviousness, as well as transparency. This allows you to create on its basis not only classic umbrellas, but also the so-called birdcage ("birdcage") — models with a high dome, covering not only the head, but also the shoulders.

— Jacquard. Waterproof fabric, usually synthetic, having a so-called jacquard weave. Due to this, a specific texture pattern is visible on the surface of the dome, giving it an original appearance. On the other hand, jacquard is quite difficult to manufacture, and therefore expensive.

— Satin. Cotton or silk fabric with an additional water-repellent impregnation, having a satin weave. This weave gives a rather dense surface with a characteristic sheen, giving it a pleasant appearance. Satin is used mainly in design models of umbrellas, on the domes of which various patterns are applied.

— Polyamide. Polyamides is the general name for a number of synthetic fibers, in particular, capron and nylon (see above). They have good water-repellent properties, but the performance characteristics (durability, resistance to stretching, etc.) can be different — depending on the price category of the umbrella.

Total weight of the umbrella.

All other things being equal, lighter umbrellas are more convenient to carry (both in the open and closed positions). On the other hand, such products are less reliable and/or more expensive than relatively heavy models of similar design and size. We also note that in some cases, significant weight can be an advantage. For example, in a strong wind, a massive umbrella does not “tear from your hands” as much, and when released, it does not fly as far as a lighter one.