Adjustable Flight Bottoms

Yes. Safety is our baseline, not an afterthought.

All Petit Pli childrenswear complies with UK childrenswear regulations, including cord safety and chemical safety requirements. Our garments are tested to ensure they meet strict standards for products worn by babies and children.

Formaldehyde testing

All fabrics are tested for formaldehyde and other restricted substances in line with UK and EU regulations. Our materials are Oeko-Tex certified or tested to equivalent non-toxic standards, meaning they are verified safe for direct contact with skin.

Soft cotton, no itchy labels

The Flight Series is 100% soft cotton, breathable and gentle on newborn skin. Labels are transfer printed, so there is nothing to scratch at the neck.

Adjusts with elastic, not hardware

The fit adjusts with an elastic strap that threads through a loop and buttons off, tucked away inside a channel where small hands cannot reach it.

We design with aerospace precision, but always for a child's everyday life. Every stitch, fibre and finish is selected with safety, durability and responsible manufacture in mind.

If you ever have a specific question about materials or certifications, just ask.

Find the end of the elastic strap at the arms and legs, pull to reveal the button, and unfasten. Pull to the size you want, re-thread it through the loop, and button. Tuck the excess strap back into the channel.

Two sizes cover 3 to 24 months on the Flight Suit, and three sizes cover 3 to 36 months on the Flight Bottoms.

Go by age first: 3 to 18 months, 9 to 24 months, or 24 to 36 months (bottoms only). The ranges overlap on purpose, so if your LittleHuman is at the top of one range, take the next one up and adjust it down.

Yes. Super soft but durable cotton, with the adjustment built into the seams rather than added on. If anything ever gives, our Free Repair Guarantee covers it.

We're so certain your LittleHuman can't wear through Petit Pli that we offer a Free Repair Guarantee. If it ever rips or a seam gives, send it back and we fix it. Register here.

A 40°C gentle machine wash takes the best care of the Flight Series. No ironing needed.

UK: free tracked delivery on orders over £75 (£3.99 below), 2 to 3 working days.

EU: tracked delivery from £4.20 on orders over £60, duties and taxes paid, nothing to pay on arrival.

Switzerland: tracked delivery from £5 on orders over £60, duties paid.

USA: free delivery on orders over $150 (about £7.50 below), 5 to 10 working days, tariffs and duties included.

Everywhere else: tracked delivery from £7, calculated at checkout. Prices show in your currency at checkout. Our LittleHuman community spans 57 countries.

We offer a hassle-free 60-day return period for most purchases. Gift orders that include a greeting card or gift wrap get an extended 90-day return period, so the recipient has time to exchange.