Nike Black Athletic Shorts: Mid-Thigh Quick-Dry Build in a Bamboo-Blend Fabric

Construction mismatch worth flagging: the authentic Nike Flex CU4946 short is listed by Nike as 100% polyester (标准版型, elastic waist with drawcord, side pockets, no brief liner), which does not match this listing's 'bamboo fiber + spandex' material claim — so fit/durability findings from the genuine CU4946 may not carry over to this listing's actual fabric.

Some buyers of the Nike Flex woven shorts complain the fabric is very thin and doubt its long-term durability; one Amazon reviewer described the material as 'very poor quality material in terms of thickness' and another called it 'not very well made.'

Lightweight, breathable construction is the most consistently praised trait of the Nike Flex woven short line: buyers call it super light and comfortable and note the light fabric keeps them cool in hot weather and dries quickly when washed.

A minority of buyers note the thin Nike Flex woven fabric can be slightly see-through when held to light / looked at closely, which matters more on the grey colorway than on the black one.

Line-level evidence for the Nike Flex woven training short (style CU4946, the 'CU4946 black/grey boxed-counter style' variant listed here): buyers report this cut runs small — one reviewer who normally wears L found the L 'compress[ed] to the point it is not comfortable,' and another titled their review 'size runs small.' Consider sizing up from your normal Nike size.

For the Nike Flex woven (CU4946) style, buyers warn that it is cut to standard/US sizing rather than Asian sizing and advise checking the size difference before ordering; several say the fit reflects standard (US) proportions rather than local expectations.

Fit surveys for the Nike Flex Woven Training Short split: 67% of surveyed buyers rated it 'true to size' while all fit-survey respondents rated it 'wider than marked,' and reviewers describe it as slightly longer and roomier than running shorts, with a standard fit.