ecoxee
An old sweater upcycled into a cushion cover, mittens, and a pouch.

Upcycling & Decor

How to Upcycle Old Sweaters

A moth-holed or shrunken jumper is too cozy to bin — upcycle old sweaters into cushion covers, mittens, leg warmers, and pet beds, with no-sew options.

By The Ecoxee Editors · September 6, 2026 · 2 min read
Share

A moth-holed jumper or a shrunken-in-the-wash sweater is too cozy to bin — knit fabric is warm, stretchy, and full of second-life potential. Some projects need a sewing machine; plenty are no-sew.

From cushion covers to mittens to pet beds, here's how to upcycle old sweaters into things you'll reach for all winter.

First: to felt or not to felt

Felting a wool sweater — a hot wash followed by a hot tumble dry — turns it into a dense fabric that won't fray, ideal for mittens, coasters, and any cutting project. Cotton and acrylic won't felt, so keep those for sewn projects.

No-sew (or barely-sew) projects

  1. Cushion cover — the body of a sweater is already a tube; slide it over a cushion pad and knot or tuck the ends.
  2. Leg warmers or boot cuffs — cut from the sleeves.
  3. Fingerless gloves — a sleeve section with a thumb hole snipped in.
  4. Cozy pouch or phone sleeve — a sleeve closed at one end.

Sewing projects

  1. Mittens — trace, cut, and stitch (felted wool is best).
  2. Cowl or infinity scarf — the body, seamed into a loop.
  3. Pet bed or cushion — stuff the body and sew it shut.
  4. Patchwork blanket or a hot-water-bottle cover.

Little bits

  1. Felted coasters, a draught excluder (a stuffed sleeve), scrunchies, and headbands.
Eco-Tip
The body of a sweater is already a ready-made cushion cover — slide it over a cushion pad, tuck the sleeves in behind, and knot or tie the bottom. No sewing, no cutting, and you can swap it for a different jumper whenever you fancy a new look.
A folded stack of mittens, leg warmers, and coasters cut from felted wool sweaters on a wooden surface

Handy knit tips

Felt wool first for any cutting project so edges don't unravel, zigzag the cut edges on unfelted knits, check for moths, and wash before you craft. For another fabric rescue, turn old t-shirts into a plant hanger.

Rescued a favorite old jumper? Share what it became in the comments at ecoxee.com — cozy makes welcome.

Keep reading: Unexpected Household Items You Can Turn Into Planters, Wine Cork Crafts: Creative Ideas Using Saved Corks, and Creative Uses for Old Picture Frames.

Join the conversation

Your email won't be published. Required fields are marked *