Make durable, slip-resistant slippers and shoes with Botties Basic Edition by Knitter’s Pride. This DIY sole set includes a pair of flexible TPU soles with a pre-punched edge, felt insoles, and 5 m of waxed thread plus Botties labels. Use with crochet, knitting, sewing or felting to build custom uppers. The soles are skin-friendly, recyclable and designed for reuse and machine washing. Size EU 37/38 fits the listed EU range for adult feet.