Nike Free RN Flyknit - White - UK 5.5

While the Nike Free RN Flyknit 2018 offers responsive cushioning, its minimalist design is generally better suited for shorter to mid-distance runs. For marathons, you might prefer a shoe with more substantial cushioning.

The shoes should feel snug but not painfully tight. Your toes should have a little room to move, and your heel should feel secure without slipping. The Flyknit upper is designed to adapt to your foot shape.

The Flyknit upper offers some breathability, which can lead to them getting wet. While they can handle light moisture, they are not waterproof. Drying them thoroughly after exposure to water is important.

The primary difference is the 'natural motion' design. The Free RN Flyknit mimics barefoot running with a highly flexible sole, whereas traditional shoes often offer more structured support and cushioning.

Flyknit is designed to be durable and resistant to stretching, but it can be susceptible to snagging on sharp objects. Proper care and avoiding abrasive conditions will extend its lifespan.

'Free' refers to the natural, barefoot-like feel the shoe provides, encouraging natural foot movement. 'RN' likely stands for 'Running'.

Yes, the flexibility and stable base make them suitable for many cross-training activities, including gym workouts, agility drills, and light strength training.

Loosen the laces and re-tie them, ensuring they are not pulled too tight. The Flyknit material will stretch slightly with wear, so a snug fit may initially feel tight but should become more comfortable over time.

Ensure the outsole is clean and free from debris. The Free RN sole is designed for natural flexibility; if you experience consistent slipping on wet surfaces, consider using these primarily on dry conditions or for indoor activities.

This is unlikely with proper care. If the material seems overly stretched, ensure you are not storing the shoes under heavy weight. Re-lacing them tightly may help restore some structure.

The Free RN design promotes a natural foot motion, which may require a short adaptation period. Start with shorter runs and gradually increase distance as your feet and muscles adjust to the new feel.