NK ReactX Infinity RN 4 GTX black white off white navy orange EU 36-45 running

The NK ReactX Infinity RN 4 GTX in black, white, off white, navy, and orange is a premium running sneaker engineered for durability and all-weather performance. Featuring NK's revolutionary ReactX foam, this shoe delivers superior energy return and a softer, more responsive ride compared to previous React formulations. The Gore-Tex upper ensures complete waterproof protection, keeping your feet dry in rain, puddles, and wet trails, while maintaining breathability for long runs.

Comfort & Fit

Weight is one of the quiet strengths of the NK ReactX Infinity RN 4 GTX - light enough for tempo days, planted enough for everyday wear.

The interior lining of the NK ReactX Infinity RN 4 GTX is smooth and seamless around the toe box, so sensitive feet stay comfortable.

Around the house or on long walks, the NK ReactX Infinity RN 4 GTX keeps fatigue low because the cushioning does not bottom out after a few hours.

Everyday Use

The NK ReactX Infinity RN 4 GTX is a strong first replica pick too: the silhouette is iconic, the fit is forgiving, and the black, white, off, white, navy and orange colorway matches nearly everything.

Travelers like the NK ReactX Infinity RN 4 GTX because it is light in the bag, comfortable for long sightseeing days and versatile enough for dinners out.

As a casual everyday shoe, the NK ReactX Infinity RN 4 GTX needs no special care routine - a soft brush and mild soap keep it fresh.

Design & Materials

The NK ReactX Infinity RN 4 GTX pairs a layered upper with sturdy stitching, so the silhouette keeps its shape long after the first wear.

Every seam on the NK ReactX Infinity RN 4 GTX sits flat against the foot, which means fewer hot spots during long days on your feet.

Lacing on the NK ReactX Infinity RN 4 GTX runs smooth through eyelets and holds a knot all day without constant re-tightening.

How to Style It

Streetwear fits love the NK ReactX Infinity RN 4 GTX - oversized hoodies, loose denim and a beanie turn it into the centerpiece of the outfit.

The black, white, off, white, navy and orange colorway is built to style easily: straight-leg jeans, cargo pants or shorts all sit well over the silhouette.

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

Sizing Guide

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

Wide-footed buyers usually stay with their normal size in the NK ReactX Infinity RN 4 GTX; the toe box gives enough room without looking bulky.

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

Quality, QC Photos & Shipping

We photograph each pair in detail before dispatch, so you can review the actual QC photos of your NK ReactX Infinity RN 4 GTX rather than stock images.

Orders are packed in protective, discreet packaging; the NK ReactX Infinity RN 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 NK ReactX Infinity RN 4 GTX.

Frequently Asked Questions

How fast is shipping and is it tracked?

Shipping is free and fully tracked worldwide. Most orders are processed quickly after QC confirmation, and the NK ReactX Infinity RN 4 GTX is packed in protective inserts so it arrives in perfect shape.

Is the NK ReactX Infinity RN 4 GTX true to size?

Yes. The NK ReactX Infinity RN 4 GTX fits true to size across EU 36-45. 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.

Can I return the NK ReactX Infinity RN 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.

If the NK ReactX Infinity RN 4 GTX fits your rotation, you can find it in the shop alongside the rest of our sneaker lineup.