Below is a clear, detailed, step-by-step guide for making simple, seamless slippers on knitting needles. These are warm, cosy, and great even for beginners. No seams around the foot opening (“the hole”)—only one small seam at the heel or sole (depending on method), or completely seamless if you use circular needles.

🧶 Simple Seamless Slippers Knitted Flat or in the Round

Warm, cozy, stretchy, and super easy!

METHOD 1 — Flat-Knitted “Ballerina” Slippers (No Seams Around the Opening)

Easiest version — one seam only at the toe or heel.

⭐ Skills Required

Cast on
Knit stitch (garter stitch)
Decrease (k2tog)
Bind off
Mattress stitch or whipstitch for closing

🧵 Materials

Worsted or chunky yarn (50–100 g depending on size)
Knitting needles:
- 4.5–5.5 mm (US 7–9) for worsted
- 6–7 mm (US 10–10.5) for chunky
Yarn needle
Scissors

📐 Sizing Guide

Measure the length of the foot and knit to that length.
These slippers are forgiving and stretch well.

Size	Cast On	Length Before Shaping
S (women 5–6)	26 sts	20 cm
M (women 7–8)	30 sts	22 cm
L (women 9–10)	34 sts	24 cm

🪢 Step-by-Step Instructions

1. Cast On

Cast on the number of stitches for your size.

Ex: 30 sts for average adult woman.

2. Knit the Foot Piece (Flat)

Knit every row (garter stitch) until you reach the needed length minus 4 cm for toe shaping.

This rectangle forms the bottom and sides of the slipper.

3. Shape the Toe (Still Seamless Around Opening)

Switch to stockinette for softer shaping (optional).

Row 1: (RS) k2, k2tog, knit to last 4 sts, k2tog, k2
Row 2: knit all sts
Repeat rows 1–2 4–6 times depending on foot size.

You should have a gently tapered end.

4. Gather the Toe

Cut yarn leaving a long tail.

Thread a yarn needle and pass through all remaining stitches.
Pull tight to close the toe.

5. Seam Under the Toe Only

Using mattress stitch, close just the toe seam for 2–4 cm.

Important:
✔ The opening (hole where the foot goes in) has zero seams.
This is exactly the “without seams on the hole” construction.

6. Shape the Heel (Optional)

Fold the back edge and sew the heel seam up 2–3 cm, leaving it open if you prefer slipper-sock style.

7. Add a Cuff or Border (Optional)

Pick up stitches around the opening and knit 4–6 rows in rib or garter stitch for a snug edge.

METHOD 2 — Truly Seamless Slippers (Knitted in the Round)

If you want absolutely no seams at all, use circular needles or DPNs.

Materials

Circular needles 6 mm or DPNs
Chunky yarn

Steps

Cast on 28–36 sts, join in the round.
Knit 5–8 cm in garter-in-the-round (alternating knit/ purl rounds).
Knit smooth foot area for 10–12 cm.
Begin toe decreases:
- Round 1: k2tog every 6th stitch
- Round 2: knit
- Continue decreasing until 8 sts remain.
Pull yarn through remaining stitches to close.