The Fledgling YF 20 is a kids' mummy bag from Feathered Friends sized for children up to 152 cm, matching the bag's internal length. It's filled with 302 g of 900+ fill-power, RDS-certified goose down, weighs 561 g total, and carries a manufacturer-rated limit of -7°C (20°F).
The water-resistant Pertex YFuse shell and recycled 20D nylon taffeta liner (37 g/m²) keep weight low even at kid-sized dimensions. A full-length left-side zipper and a fitted hood are standard, but unlike the Flicker series, this bag has no two-way zipper or convertible construction — it's a straightforward, single-purpose mummy bag.
At under 600 g and rated down to -7°C, the Fledgling YF 20 suits three-season family trips and kids' backpacking where you want reliable insulation without extra bulk in a small pack. Because the internal length is fixed at 152 cm, children will outgrow it faster than they would a bag with adjustable length.