Families planning a last-minute getaway before the school term begins are being urged to rethink their in-flight outfits after experts warned certain clothing could raise the risk of blood clots.
Specialists at clothing retailer Ready Set Supplied say that while tight leggings, skinny jeans and fitted tops may look stylish before boarding, they can cause swelling, stiffness and even illness by the time passengers land.
The advice is particularly aimed at those taking flights of more than four hours — a threshold identified by the World Health Organization (WHO) as significantly increasing the risk of deep vein thrombosis (DVT). The condition occurs when dangerous blood clots form in the legs, which can be life-threatening if they travel to the lungs.
Risky Clothing Items to Avoid
Based on WHO research, Ready Set Supplied compiled a list of clothing best avoided for long-haul journeys:
- Skin-tight leggings and skinny jeans – Restrict blood flow and leg movement.
- Tight waistbands or shapewear – Dig into the stomach and thighs, causing discomfort.
- Garments with stiff seams or elastic cuffs – Press into the skin and limit mobility.
- Tight or rigid shoes – Can become painful as feet swell at altitude.
- Heavy synthetic fabrics – Trap heat, limit ventilation and reduce comfort.
Better Alternatives for Long Flights
To help travellers stay comfortable and healthy, the experts recommend:
- Loose joggers, wide-leg trousers or linen pants – Allow better circulation and air flow.
- Breathable layers such as cotton T-shirts, cardigans or hoodies – Adaptable to changing cabin temperatures.
- Flexible, slip-on footwear – Easier to remove and more forgiving of swelling.
- Compression socks (optional) – Improve circulation when paired with looser clothing.
Expert Advice
A Ready Set Supplied spokesperson said:
“WHO research shows that keeping mobile and avoiding restrictive clothing during travel is key. We’ve identified the best and worst choices to help people fly more comfortably and safely.”
They added that style does not need to be sacrificed for comfort:
“If it’s cutting in, riding up or squeezing you, it’s probably not right for flying.”
The reminder comes as many families prepare for one last holiday before the school term resumes, with airports across the UK expecting a surge in passengers in the coming weeks.