Check the range sells the garment you want
Price comparisons only help once the seller stocks what you are shopping for. Decathlon lists activewear among its product types, and its range reaches wider into outdoor clothing, hiking, camping, cycling and winter sports. Manduka lists recovery gear, and Rollga lists recovery and strength equipment, so neither of them is a source for tights, tops or sports bras.
Treat the product list as a filter rather than a summary. If your basket is full of clothing, work from the Activewear and gym clothing ranking and use the Decathlon review as the reference point for the apparel option. If your basket is mats and rollers, the Manduka and Rollga reviews are where the useful comparisons sit.
Compare entry prices against the whole market
Each brand here publishes a lowest price, and those figures sit at different points on the scale. Decathlon's entry price is $9.99 and Rollga's is $9.49, while Manduka lists $54 from its yoga mat collection.
An entry price says little on its own, because one low priced accessory can pull a brand's starting figure down without describing its clothing line at all. That is why the €3 to €2,700.17 range matters: it shows the lowest and highest entry prices across the brands on record, so a figure sitting well below one end tells you the brand belongs to a different price tier rather than offering the same item more cheaply. Compare like with like, and separate apparel prices from equipment prices before drawing any conclusion.
Work out when delivery stops costing extra
Delivery thresholds decide how much you need to spend before shipping is included. Decathlon sets its threshold at $49, Rollga at $99 and Manduka at $140. A clothing order is easier to push past a lower bar than a single piece of kit, so run the arithmetic on your planned basket rather than on one item and note which side of the line you land on.
Markets narrow the same question. Decathlon and Rollga both list the US as their market, while Manduka ships to a much longer list of countries. A buyer outside the US therefore has fewer sellers to compare and should check the threshold before assuming delivery is free.
Read the return window before you size up
Activewear is hard to judge from a screen, so the return window is what makes trying it sensible. Decathlon and Manduka each give 30 days and 30 days, and Rollga goes further with 60 days on money back returns. Return terms across the category vary widely, with 14 to 100 days covering the span on record.
Two details decide whether that window is actually useful. Decathlon offers free returns, and worn items are not accepted back, so try a garment on indoors before deciding. A generous period is only worth something if the condition rules are clear and you understand what the seller will inspect on arrival.
Weigh the warranty against the entry price
Warranty length is the cleanest way to separate these sellers. Decathlon offers a lifetime warranty and Manduka does the same, with lifetime cover recorded on the product guarantee. Rollga does not offer a lifetime warranty, so its lower entry price of $9.49 has to stand on its own.
Long cover is most useful on the equipment you will use hardest and least useful on apparel that shifts with your size, your training load or the season. Set the warranty term next to the return window and ask which one covers a genuine failure rather than a change of mind.
Check the support route and the seller behind the site
When something goes wrong, the contact route decides how quickly you get an answer. Decathlon lists email and a help centre, and Manduka lists email, phone, chat and a help centre, giving you more ways to reach someone about a bulky or heavy item.
Then confirm who you are actually buying from. Decathlon sells as a brand through Decathlon USA LLC and/or Decathlon America LLC, with its headquarters in France and a founding year of 1976. Manduka and Rollga also sell as brands, each with a US headquarters, and Manduka, LLC and Rollga LLC are named on their terms pages. Knowing the legal entity tells you which returns and warranty pages apply to your order.
Run the final checks before you commit
On Manduka and Rollga, confirm nothing sits behind a subscription. Neither requires a membership, and the monthly membership fee is $0 with Manduka and $0 with Rollga. Manduka mats also fold, carry a recycled certification and list no screen, which only matters if mats are part of your order.
For apparel, the practical numbers to plan around are Decathlon's delivery threshold of $49, a free return offer with returns of 30 days, a lifetime warranty and a US market. If a seller will not state its return window, its warranty length and its delivery threshold clearly, that silence is the most expensive detail on the page.