Le Thermique Doux

Le Thermique Doux is a seamless brushed fleece thermal set in a considered Derong polyester construction — a complete two-piece thermal essential built on a clean, boneless silhouette that carries the kind of soft, deliberate warmth that only a well-made seamless fleece thermal can deliver. The Derong brushed polyester fabrication gives it the kind of plush, skin-soft warmth that works through every cold day and every winter night; the seamless, boneless construction gives it the kind of frictionless, tag-free comfort that makes it the most considered and most effortless choice for children who need their base layer to disappear completely beneath their clothes; the antibacterial treatment gives it the kind of considered, hygienic freshness that makes it the most complete and most trusted thermal set for everyday wear. This is not a thermal set that compromises on softness or warmth. It is a thermal set that delivers both — in the most comfortable, most considered way possible.

Available in four considered colourways — Blue, Light Grey, Pink, and Purple — across nine height sizes from 80cm through 160cm, Le Thermique Doux is the thermal essential for boys and girls aged 2 to 12 who deserve the softest, most considered warmth from the inside out. Four colourways. Nine sizes. One thermal set that does everything.

The thermal that carries the whole winter — in the most considered colourway your child chooses.

The Details

• Style: Seamless two-piece thermal set — round-neck top and trousers
• Construction: Boneless (seamless) — no seams, no tags, no friction
• Fabric: Derong brushed polyester — 90% polyester, plush fleece inner
• Function: Warmth, antibacterial
• Colourways: Blue | Light Grey | Pink | Purple
• Sizes: 80cm | 90cm | 100cm | 110cm | 120cm | 130cm | 140cm | 150cm | 160cm
• Suitable for: Boys and girls — ages 2 to 12
• Occasion: Base layer, sleepwear, home wear
• Season: Autumn, winter

The Colour Stories

Blue — The most classic and most considered colourway. Blue on a seamless fleece thermal carries the clean silhouette with the kind of deliberate, enduring confidence that makes it the most versatile and most considered choice — the colourway that works for both boys and girls, in every winter layer.

Light Grey — The most refined and most considered colourway. Light Grey on a seamless fleece thermal carries the clean silhouette with the kind of cool, understated depth that makes it the most effortless and most considered choice — the colourway that layers beneath anything with the most quiet, most deliberate authority.

Pink — The most warm and most considered colourway. Pink on a seamless fleece thermal carries the clean silhouette with the kind of soft, deliberate warmth that makes it the most comforting and most considered choice for the child who wants their base layer to feel as sweet as it is cosy.

Purple — The most distinctive and most considered colourway. Purple on a seamless fleece thermal carries the clean silhouette with the kind of rich, deliberate depth that makes it the most characterful and most editorial choice in the range — the colourway that gives the thermal set its most considered, most deliberate expression.

Size Guide

Sizes are based on child’s height. If your child is between sizes or on the taller side, we recommend sizing up for the most comfortable, considered fit. Please allow 2–3 cm for natural measurement variation.

Specifications

Style Note

Le Thermique Doux is a seamless, boneless thermal set — meaning there are no raised seams, no internal tags, and no friction points anywhere on the garment. This makes it the most considered base layer for children with sensitive skin, or for any child who needs their thermal layer to sit completely flat and invisible beneath their outer clothes. The set is designed to be worn directly against the skin as a first layer, or as a standalone sleepwear set at home. The brushed fleece inner traps warmth without bulk — giving the most considered, most effortless thermal performance in the thinnest, most comfortable silhouette possible.

Care Instructions

• Machine wash cold on a gentle cycle to preserve the Derong brushed fleece construction and the antibacterial treatment
• Wash inside out to preserve the fleece’s plush texture and the seamless construction over time
• Use a mild, child-safe detergent — avoid bleach or fabric softeners that can degrade the antibacterial treatment and the fleece texture
• Tumble dry on a very low heat setting or air dry flat to preserve the fleece’s softness and the set’s considered shape
• Do not iron — the seamless construction does not require ironing and heat can damage the brushed fleece surface
• Store folded flat in a cool, dry drawer to maintain the set’s considered, comfortable shape