they are a single layer but do not have an arch because little feet don't quite need them yet

but the bag also meets strict carry-on requirements

Sides: 80% Polyester

• Double needle reinforced critical seams

MADE IN CHINA

Patagonia R1 TechFace Hoody - BLK Size:M they are a single layerWarm, stretchy and breathable like our Regulator fleece, but with the added benefits of abrasion and weather resistance. This slim fit, full zip, cool weather crosslayer was designed for extended versatility in shifting mountain conditions. Made in a Fair Trade Certified factory. Style No. 83578 Fleece Like Comfort with Durable Face Fabric Lightweight 90% recycled polyester 10% spandex double weave fabric is soft and warm next to the skin, but doesnt