Encyclopedia
NK Flex Train black light pink EU 36-40 training shoe
The NK Flex Train in black and light pink is a versatile training shoe built for dynamic workouts. Designed for EU sizes 36 to 40, this women's sneaker offers a snug, supportive fit that adapts to your foot's natural movement. The lightweight mesh upper combines breathability with durable overlays, ensuring comfort during high-intensity sessions. The Flex Train features a flexible outsole with targeted grooves, allowing for multi-directional traction and smooth transitions—ideal for gym floors, studio classes, or light outdoor runs. The responsive foam midsole provides cushioning without adding bulk, helping you stay stable during lateral moves, squats, and lunges. The black and light pink colorway adds a stylish contrast, making these NK training shoes a standout addition to your athletic wardrobe. Whether you happen to be a beginner or a seasoned athlete, the Flex Train supports your fitness journey with reliable performance. Its low-profile design and padded collar enhance ankle support, while the lace-up closure ensures a secure fit. Perfect for cross-training, weightlifting, or everyday wear, these sneakers blend function with fashion. The durable rubber outsole offers excellent grip on various surfaces, and the cushioned insole reduces impact on joints. If you're searching for affordable NK trainers with a feminine touch, the Flex Train in black and light pink is a smart choice. Available in EU 36, 37, 38, 39, and 40, this shoe fits true to size. Improve your workout gear with this modern, sporty sneaker that transitions seamlessly from the gym to the street. Order now to experience the perfect balance of comfort, flexibility, and style.







Comfort & Fit
For training use, the NK Flex Train cushions landings well and keeps its shape through high weekly mileage.
Breathability on the NK Flex Train is solid for a sneaker with this much overlay work; thin socks are comfortable even in summer.
The interior lining of the NK Flex Train is smooth and seamless around the toe box, so sensitive feet stay comfortable.
Everyday Use
Runners use the NK Flex Train for easy days and gym sessions, while the outsole holds up to regular pavement work.
As a daily training sneaker, the NK Flex Train covers commutes, gym days and weekend plans without asking for a break.
For people on their feet all day, the NK Flex Train keeps the pace with cushioning that survives eight-hour shifts.
How to Style It
Because the NK Flex Train keeps its color blocking close to the original, it works with retro sportswear just as well as with modern minimal outfits.
For a clean everyday look, wear the NK Flex Train with tapered trousers and a plain tee, and let the colors do the talking.
If you rotate sneakers weekly, the NK Flex Train slots into a three-shoe rotation without clashing with the rest of your closet.
Design & Materials
The NK Flex Train pairs a layered upper with sturdy stitching, so the silhouette keeps its shape long after the first wear.
Lacing on the NK Flex Train runs smooth through eyelets and holds a knot all day without constant re-tightening.
Color placement on the black, light and pink version follows the original release closely, so the shoe reads correctly from every angle.
Sizing Guide
For narrow feet, a runner knot or an extra lace hole keeps the NK Flex Train snug without pressure points.
The NK Flex Train runs in EU 36 to 40 and fits true to size for most feet.
The lacing system on the NK Flex Train lets you fine-tune the midfoot, so a slightly loose fit can be locked down in seconds.
Quality, QC Photos & Shipping
We photograph each pair in detail before dispatch, so you can review the actual QC photos of your NK Flex Train rather than stock images.
Orders are packed in protective, discreet packaging; the NK Flex Train arrives with the shoe shape held by inserts, exactly as a retail pair would.
Shipping is free and tracked worldwide, and support is available on WhatsApp if you have questions before or after ordering the NK Flex Train.
Frequently Asked Questions
Can I return the NK Flex Train if something is wrong?
Yes. If the pair arrives with any defect or does not match the QC photos, contact support and the return policy covers a replacement or refund.
What quality is the NK Flex Train at BAUNSU SHOES?
It is a premium quality build - the shape, stitching, color placement and materials are matched against the retail pair, and every order ships with detailed QC photos before dispatch so you approve the exact pair you receive.
Is the NK Flex Train true to size?
Yes. The NK Flex Train fits true to size across EU 36-40. If you are between sizes or plan to wear thick socks, take the half size up. The lacing system also lets you adjust midfoot tightness.
Ready to wear the NK Flex Train? Browse the full range of training sneakers in our shop, or read more breakdowns in the encyclopedia.