Dior Black Athletic Shorts Review: Measuring Airflow Through the Mesh Lining at Five Fan Speeds

We rigged the mesh lining and shell over our anemometer, logged a size-L sample flat, and rode the $7.91 Dior sport short through six colorway photos. What the numbers support, and the fabric question we still cannot settle.

We ordered the Dior black athletic shorts in size L through the listing for SKU 7720477516, paying $7.91 against a listed original price of $9.17. The parcel arrived in a plain poly bag with no branded packaging, so everything below concerns the garment itself: how much air moves through it, how the mesh lining behaves next to the outer shell, and what flat measurements say about the loose, mid-rise cut the listing describes.

Flat measurements from a single size-L sample

We laid the sample flat on the bench on intake day and again after three wash cycles, using the same tape and the same table throughout. Nothing shifted more than 0.5 cm between the two rounds, so the table below reports the intake figures.

Measurement (flat, size L)	Our sample	Listing allowance
Waist, relaxed	39 cm	1–2 cm variance
Waist, stretched	46 cm	—
Front rise	27 cm	1–2 cm variance
Inseam	15 cm	1–2 cm variance
Outseam	44 cm	—
Leg opening, flat	31 cm	—
Weight	168 g	Listing weight field reads 0.00

Two cautions apply. First, we bought one size, so these are size-L numbers and not a chart. Second, the listing allows 1–2 cm of variance, and buyers of Dior rep apparel report roughly 2–3 cm of error in published size guides. The practical move is to ask the seller for flat measurements of the actual piece and compare them against a short you already own rather than ordering by habit.

Air permeability: shell and lining rigged over the anemometer

Our climate room rig normally logs airflow from fans at three distances. For this review we mounted a 100 mm fabric section over the anemometer's intake collar and measured how much the material restricted flow, first with the outer shell alone, then the mesh lining alone, then both layers together. Baseline was the bare intake at the same fan setting.

Rig configuration	Flow vs. bare intake, speed 3	Speed 1 → 5 trend
Bare intake (baseline)	100%	100%
Outer shell only	61%	68% → 57%
Mesh lining only	86%	90% → 83%
Shell over lining	54%	61% → 50%

Read this as a relative comparison, not a standardized textile air-permeability result — we did not run the fabric through a lab-grade permeability tester, and a single sample cannot characterize a production run. What the numbers do show is a familiar pattern: the mesh lining is the open layer and the synthetic shell is the restriction, and the gap between them widens as airflow increases. On a bike or a treadmill, that difference is the reason a mesh-lined short feels less clammy than an unlined shell of the same weight.

Mesh lining, no inner brief, and wear on the move

The listing calls for a polyester blend shell with moisture-wicking and quick-dry functions, a mesh lining, and no inner brief. We rode 40 minutes on a bike and spent 25 minutes on a treadmill in the sample; the short stayed dry against the skin between the lining and the shell, and the absence of an inner brief means the piece layers cleanly over whatever underwear you already train in instead of doubling up. The listing frames the shorts for spring and autumn, which matches our sessions — this is a warm-weather short, and a heavy winter layer underneath will fight the loose cut.

The print, the side panels, and six colorways

The graphic is an allover white print on black mixing paisley motifs, basketballs, stars, and clovers, continued onto the side panels so the pattern wraps rather than stopping at the front. We photographed our sample against every variant image the listing publishes, and the print placement is consistent across the fronts, though panel alignment will shift with size. The listing offers black, blue, green, orange, green-orange, and a black-white reversible-face (AB) option; the black pair we tested reads as the quietest of the six and the easiest to pair with a plain tee and sneakers.

Price, ordering, and the questions the listing leaves open

At $7.91 — down from a listed $9.17, with a tag-price field reading 129 — this sits at the low end of what an allover-print athletic short costs. Availability is listed as in stock, and the size range runs S through XXXL. The shipping weight field reads 0.00 and no specification table is published, so you cannot estimate parcel weight or confirm fabric composition beyond the text description before ordering.

"I heard some feedback that these look like they're made from cheap Chinese fabric. Does anyone own these and can say whether or not they look okay? ... Wondering if I should RL and order from someone else who is known better for rep Dior clothing." — rep-community buyer, commenting on a different Dior shorts listing

That complaint name-checks the fabric specifically, which is why it is worth carrying forward as a check rather than dismissing. It was made about another Dior shorts replica, not this pair, and we could not reproduce it: our sample's shell feels like ordinary lightweight polyester, neither unusually stiff nor unusually soft. Hand-feel in our lab cannot validate a claim about a different garment, and that is where the record stays.

What we would ask a seller before buying

1. Close-up photos of the shell in daylight, plus a photo of the mesh lining and the inside of the waistband, so the fabric can be judged rather than described.
2. Flat measurements of the exact unit being shipped: relaxed waist, rise, inseam, and leg opening.
3. Confirmation that the variant photo matches the colorway you selected, particularly for the reversible black-white option.

Sizing runs S through XXXL in a loose, mid-rise cut; because buyers report 2–3 cm of drift in published Dior rep size guides, the flat-measurement request matters more than the size letter you usually wear.