Mossy Glen Felted Slipper Socks: A Knitted Forest Floor Comfort

Step into the quiet hush of a woodland path with these felted slipper socks, knit in earthy moss and bark tones. The dense, fulled fabric creates a sturdy yet plush sole that molds perfectly to your feet, offering the comfort of a forest floor beneath every step. This pattern is perfect for beginners and experienced knitters alike, transforming simple worsted-weight wool into a cozy, custom-fit pair of slippers that will keep your toes warm all season long.

Felting is a magical process: you knit a generously sized slipper, then agitate it in hot water to shrink and fuse the wool fibers into a thick, durable, and water-resistant fabric. The result is a pair of slippers that are not only incredibly warm but also uniquely yours—they shape to your feet as they dry. Let's get started on your journey to crafting these forest-inspired treasures.

Materials Needed

Before you begin, gather the following supplies. Using the correct materials is crucial for successful felting—especially choosing a 100% wool that is NOT superwash, as superwash wool is treated to resist shrinking and will not felt properly.

• Yarn: Worsted weight 100% wool (non-superwash), approximately 350-400 yards. A great example is Cascade 220, or any similar wool yarn. Choose earthy tones like moss green, bark brown, or heathery oatmeal to match the woodland theme.
• Knitting Needles: US 9 (5.5 mm) knitting needles, or the size needed to achieve gauge. You can use straight needles or circulars for flat knitting.
• Tapestry Needle: For seaming the slippers together.
• Stitch Markers (optional): Helpful for marking increases.
• Pillowcase: To protect your washing machine during the felting process.
• Mild Detergent: A small amount to help the felting process.
• Old Jeans or Towels: To provide agitation in the washing machine.

Gauge: 16 stitches and 22 rows = 4 inches in stockinette stitch before felting. Note: Gauge will change significantly after felting, so do not be alarmed if your pre-felted piece looks much larger than your foot.

Step-by-Step Instructions

This pattern is worked flat in one piece from the toe to the heel, then seamed up the back. The instructions are for two sizes: Women's US 6-8 (9-11). The first number is for the smaller size, and the number in parentheses is for the larger size.

Getting Started: The Toe

We begin at the toe, casting on and increasing to create a rounded shape that will comfortably house your toes.

1. Cast On (CO): Cast on 32 (36) stitches.
2. Row 1 (Right Side - RS): K1, M1L (Make 1 Left), knit to the last stitch, M1R (Make 1 Right), K1. You will have increased by 2 stitches. (34/38 sts)
3. Row 2 (Wrong Side - WS): Purl all stitches.
4. Repeat Rows 1 and 2 two more times. You will have completed 3 increase rows in total. (38/42 sts)

Pro Tip: M1L and M1R are invisible increases. To M1L, pick up the bar between stitches from the front and knit through the back loop. To M1R, pick up the bar from the back and knit through the front loop.

Knitting the Foot

Now you will work the main body of the slipper, which will cover the top and bottom of your foot.

1. Work Even: Continue in stockinette stitch (knit on the RS, purl on the WS) without any increases.
2. Length: Work even until the piece measures 7 (8) inches from the cast-on edge, ending with a WS row. This length will shrink during felting, so it's better to err on the side of longer.

Shaping the Heel

Next, we'll add a few increases to accommodate the width of your heel, then shape it with decreases.

1. Row 1 (RS): K1, M1L, knit to the last stitch, M1R, K1. (40/44 sts)
2. Row 2 (WS): Purl all stitches.
3. Repeat Rows 1 and 2 two more times. (44/48 sts)
4. Work Even: Continue in stockinette stitch for 2 (3) inches, ending with a WS row.

Heel Shaping (Decreases)

Now we will decrease to close the heel and shape the back of the slipper.

1. Row 1 (RS): K1, ssk (slip, slip, knit), knit to the last 3 stitches, k2tog (knit two together), K1. (42/46 sts)
2. Row 2 (WS): Purl all stitches.
3. Repeat Rows 1 and 2 until you have 20 (22) stitches remaining, ending with a WS row.

Pro Tip: ssk is a left-leaning decrease. Slip two stitches knitwise one at a time, then insert the left needle into the front of these two stitches and knit them together. k2tog is a right-leaning decrease; simply knit two stitches together as one.

Creating the Cuff

This will form a sturdy, non-rolling edge at the top of your slipper.

1. Knit 6 rows of garter stitch (knit every row).
2. Bind off loosely. A loose bind-off is essential so the cuff isn't too tight after felting. You can use a larger needle to bind off if needed.

Finishing and Seaming

Time to turn your flat piece into a slipper!

1. Fold: Fold the piece in half lengthwise with the Right Sides (RS) together. The cast-on edge (toe) should be at one end, and the bind-off edge (cuff) at the other.
2. Seam: Using your tapestry needle and a length of yarn, seam from the toe up to the heel using the mattress stitch. This creates an invisible, sturdy seam.
3. Turn: Turn the slipper Right Side (RS) out. It will look oversized and floppy at this point—this is completely normal and expected!

The Magic of Felting

This is the most exciting part! We will now shrink the slipper to its final, cozy size.

1. Prepare: Place both slippers inside a pillowcase and secure the opening with a knot or rubber band. This protects your machine from wool fibers.
2. Wash: Put the pillowcase in the washing machine with a small amount of mild detergent. Add a pair of old jeans or a few towels to increase agitation.
3. Settings: Set the machine to the hottest, smallest load setting (or a "quick" cycle) and let it run.
4. Check Frequently: Stop the machine every 5 minutes to check the slippers. You want them to shrink by about 20-25%. They should look dense and slightly nubby, with no visible stitch definition.
5. Rinse and Shape: Once they reach the desired size, rinse them in cold water to stop the felting process. Gently squeeze out excess water (do not wring).
6. Dry: Shape the damp slippers with your hands, pulling them into the correct form. For a snug, custom fit, wear them until they are completely dry. Otherwise, stuff them with plastic bags or towels to help them hold their shape and air dry.

And there you have it—your very own pair of Mossy Glen Felted Slipper Socks! The dense, felted wool will mold to your feet, providing a custom, plush, and incredibly warm fit. Enjoy the quiet comfort of the forest floor, right in your own home. Happy knitting!