We await it like the verdict of a parade. Each quarter, Lyst unveils its Index, a highly anticipated ranking that sifts through the hottest brands and pieces of the moment. To establish this ranking, the platform specializing in online fashion analyzes the desires and purchasing behaviors of millions of consumers around the world. A true barometer of desirability, which allows you to take the pulse of trends well before they become unavoidable.
On October 28, 2026, Lyst revealed its rankings for the third quarter of the year, covering the period from July to September. And the vintage has some surprises in store! Prada now occupies first place among the most trendy brands, while its clutch takes the title of most coveted product. But just behind this creation signed by the Italian house slips a much more accessible piece: the COS bag, offered at 199 euros. A second place which could well make it look like the star handbag of the season.
What are the hottest fashion products of the moment according to Lyst?
To establish its ranking, Lyst doesn’t just count clicks. Its Index combines demand data from 160 million annual buyers on its platform with different signals from social networks, online searches, editorial content and new discovery channels linked to artificial intelligence. The methodology takes into account three dimensions in particular: desire, demand and discovery. For its ranking of the most trendy products, the platform also sifts through more than eight million references, cross-referencing mentions on social networks, searches, page views, interactions and sales.
At the top of the charts for the third quarter of 2026, we find Prada, whose demand jumped by almost 500% compared to the previous quarter. The COS bag took second place, ahead of the Celine x Reebok sneakers, ranked third, and the Vans, in fourth position. The top 5 is completed by Dries Van Noten’s scarf skirt, whose demand increased by 383% on Lyst during the quarter. Enough to confirm that accessories and statement pieces are more popular than ever.
COS: this leather bag at 199 euros plays in the league of the big luxury houses
With its supple look and graphic flap, the COS bag ticks all the boxes for a chic bag without going overboard. Made from soft leather, it features a slightly pleated silhouette, a metal clasp and a top handle. It is also sold with a removable shoulder strap, so you can go from carrying it in the hand to carrying it on the shoulder as you wish. Its little extra bit of elegance? A clean line and generous volume that allow it to fit in with both an office outfit and a more casual look.
The classic model measures 23 cm in height, 32 cm in width and 14 cm in depth. It is priced at 199 euros. In terms of colors, lovers of sobriety can opt for black, while the versions in ebony suede or burgundy (black coffee) bring a more unique touch. COS also offers the bag in a more generous version, at 249 euros.
This success is part of the craze spotted by Lyst for soft bags with top handles, particularly sought after during the summer. The represents the more accessible side of this trend, compared to the highly coveted Balenciaga, ranked eighth in the list. But this alternative from COS didn’t wait to appear in the Lyst rankings to get people talking about it: on social networks, videos dedicated to it number in the thousands. Proof of its success? The bag has been out of stock for several weeks. To avoid missing out on its return, some advice: activate the alert bell on the COS website to be notified as soon as it becomes available again.
Prada, Chanel, Celine… what are the most coveted brands in 2026?
As for fashion houses, Prada takes control of the ranking after climbing five places. Demand for the Italian brand increased by 55% on Lyst in the third quarter, driven in particular by its fall-winter 2026 collection and conversations sparked during Fashion Week. Chanel maintains second position, while Miu Miu completes the podium. Gucci comes fourth, ahead of Saint Laurent, which occupies fifth place.
Another notable movement: Celine gained five ranks and entered the top 10 for the first time, in tenth position. The brand also recorded a 62% increase in demand for its men’s wardrobe over one year. Dries Van Noten also enters the ranking, in sixteenth place, with demand up 27% over the quarter. The report finally highlights a change in mood in fashion desires: after the refined minimalism that dominated the previous year, consumers seem more attracted to prints, textures and ornamental pieces. But the well-designed classics, like the COS bag, have definitely not said their last word.
Source: The Lyst Index, ranking for the third quarter of 2026, published October 28, 2026. View the full report on Lyst.
FAQ: everything you need to know about the COS Trullo Flap bag
What is the hottest bag according to Lyst in the third quarter of 2026?
The Prada bag comes in first position in the ranking of the most trendy products, followed by the COS bag.
How much does the COS Trullo Flap bag cost?
The classic version is offered at 199 euros. The oversize version costs 249 euros.
What colors is the Trullo Flap bag available in?
The model is available in black leather, ebony suede and burgundy, called “black coffee”.
What is the difference between the classic Trullo Flap and the oversized model?
The classic version measures 23 x 32 x 14 cm, while the oversized version measures 32 x 45 x 18 cm.
Why is the COS bag ranked second by Lyst?
It is among the top trending products of Q3 2026, as ranked by Lyst based on demand data and online discovery and interest signals.
