Nike ReactX Infinity Run 4 GTX black grey 36-46 running lifestyle

The Nike ReactX Infinity Run 4 GTX in black and grey is a premium running sneaker designed for both performance and everyday lifestyle wear. Engineered with Nike's revolutionary ReactX foam, this shoe delivers superior energy return and a softer, more responsive ride compared to previous generations. The sleek black and grey colorway makes it a versatile addition to any sneaker rotation, easily pairing with athletic gear or casual streetwear. Featuring GORE-TEX waterproof technology, these shoes keep your feet dry in wet conditions, making them ideal for rainy-day runs or commutes. The breathable mesh upper ensures ventilation, while the durable rubber outsole provides reliable traction on various surfaces. Available in sizes 36-46, the Infinity Run 4 GTX offers a snug, supportive fit, with a padded collar and tongue for added comfort. Whether you happen to be a dedicated runner seeking a high-mileage trainer or a sneakerhead looking for a stylish, functional shoe, the ReactX Infinity Run 4 GTX delivers on all fronts. Its reflective details enhance visibility during low-light runs, and the lace-up closure ensures a secure lockdown. With a focus on sustainability, ReactX foam reduces carbon footprint by 43% compared to standard Nike foams. This sneaker bridges the gap between performance and lifestyle, offering all-day comfort and modern aesthetics.

Everyday Use

For people on their feet all day, the Nike ReactX Infinity Run 4 GTX keeps the pace with cushioning that survives eight-hour shifts.

As a daily running sneaker, the Nike ReactX Infinity Run 4 GTX covers commutes, gym days and weekend plans without asking for a break.

Runners use the Nike ReactX Infinity Run 4 GTX for easy days and gym sessions, while the outsole holds up to regular pavement work.

Comfort & Fit

Breathability on the Nike ReactX Infinity Run 4 GTX is solid for a sneaker with this much overlay work; thin socks are comfortable even in summer.

For running use, the Nike ReactX Infinity Run 4 GTX cushions landings well and keeps its shape through high weekly mileage.

Heel-to-toe transitions on the Nike ReactX Infinity Run 4 GTX feel rolling and natural rather than clunky, even at a casual walking pace.

Design & Materials

Underfoot, a cushioned midsole absorbs impact and returns a little bounce, which is exactly what you want from a daily running sneaker.

Perforations and mesh zones on the Nike ReactX Infinity Run 4 GTX move air around the foot, keeping things cool through a full day of wear.

Structural overlays on the Nike ReactX Infinity Run 4 GTX add support where the foot rolls through each step, while lighter panels keep the overall weight low.

How to Style It

In summer, the Nike ReactX Infinity Run 4 GTX pairs naturally with shorts and light chinos; in winter it holds its own under wool coats and flannel.

One quiet advantage of the black and grey palette: scuffs and dirt stay invisible far longer than on white-only releases.

If you rotate sneakers weekly, the Nike ReactX Infinity Run 4 GTX slots into a three-shoe rotation without clashing with the rest of your closet.

Sizing Guide

The lacing system on the Nike ReactX Infinity Run 4 GTX lets you fine-tune the midfoot, so a slightly loose fit can be locked down in seconds.

Length-wise the Nike ReactX Infinity Run 4 GTX matches standard EU sizing, and the shape leaves a comfortable thumb width of space at the toes.

If you are between sizes in the Nike ReactX Infinity Run 4 GTX, taking the half size up is the safer choice, especially with thicker socks.

Quality, QC Photos & Shipping

Orders are packed in protective, discreet packaging; the Nike ReactX Infinity Run 4 GTX 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 Nike ReactX Infinity Run 4 GTX.

Every Nike ReactX Infinity Run 4 GTX pair from BAUNSU SHOES is a 1:1 build - checked against the retail version for shape, color placement and materials before it ships.

Frequently Asked Questions

What quality is the Nike ReactX Infinity Run 4 GTX at BAUNSU SHOES?

It is a 1:1 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.

Can I return the Nike ReactX Infinity Run 4 GTX 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.

Is the Nike ReactX Infinity Run 4 GTX true to size?

Yes. The Nike ReactX Infinity Run 4 GTX fits true to size across EU 36-46. 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.

If the Nike ReactX Infinity Run 4 GTX fits your rotation, you can find it in the shop alongside the rest of our 1:1 sneaker lineup.