Where to recycle those tricky textiles

Journal · March 1, 2023
Where to recycle those tricky textiles

Kerbside recycling takes almost no textiles, and charity shops can only resell what is still wearable. That leaves a category of awkward items — worn-out swimwear, laddered tights, dead bras, holed socks, finished trainers, old duvets — which most households eventually put in the bin because there is no obvious alternative. There usually is one; it is just not well signposted.

Why these items are difficult

Each of them fails conventional textile recycling for the same reason in different forms: they are mixed materials with rigid components attached. A bra is fabric, foam, elastic, wire and hooks. A trainer is textile, foam, rubber and adhesive. Swimwear is nylon knitted with elastane, which no mechanical process can separate. Mechanical recycling needs a reasonably pure and clean input stream, and none of these provides one without manual disassembly.

Swimwear and activewear

Several swimwear labels and larger sportswear retailers now operate take-back schemes that accept worn-out garments from any brand. What comes back is generally downcycled rather than recycled into new clothing: mixed elastane blends end up as industrial felt, insulation or carpet underlay, where fibre purity is irrelevant and the material displaces virgin plastic. That is a real gain over landfill and is not the same as closing a loop. Before posting anything, wash it and strip every zip, wire, clip and slider — hardware is what gets a consignment rejected. There is more detail on our swimwear recycling page.

Tights and hosiery

Synthetic hosiery is nylon or polyamide with elastane, in very small quantities per item, which is why no local scheme wants it. Specialist mail-in schemes run by hosiery brands collect it in bulk and route it into industrial applications — reinforced composites are a common destination, where shredded nylon replaces part of a glass-fibre content. The practical advice is to save up a bag rather than posting three pairs, since the transport footprint of a single small parcel outweighs what is recovered.

Bras

Bras split into two streams by condition. Anything still wearable is genuinely wanted: several charities run bra banks, both to raise funds and to supply markets where a new bra is prohibitively expensive relative to local incomes. Reuse here is far better than recycling, and the demand is real rather than notional.

Bras beyond wearing are taken by some lingerie retailers in store and sent to specialist processors who separate the components — fabric, foam, wire, hooks — and route each to a different use: padding, insulation, automotive seat filling. Some of these processors can even use the dust from shredding, which goes into recycled board.

Socks

Sock take-back schemes tend to be run by subscription sock brands, which have the return logistics already in place. Wearable pairs are washed and passed to charities; unwearable ones are shredded into industrial textiles. Socks are one of the few items where the sorting is genuinely worth it, because the reusable fraction is high — most socks are discarded for a single hole.

Trainers

Trainers are the hardest of all, being three or four materials bonded together with adhesive designed never to fail. Manufacturer take-back schemes accept any brand and typically grind the whole shoe into a crumb used for sports surfaces, playground safety flooring and track underlay. It is downcycling, and it is much better than a shoe sitting intact in landfill for decades.

Home textiles

Duvets, pillows, towels, curtains and bed linen are accepted by take-back schemes at several large homeware retailers. Clean items in usable condition are passed on for reuse; feather-filled items are almost always reprocessed, since down is valuable and easy to clean; the rest is recycled into fillings and industrial cloth. Washing before donating is not a courtesy but a condition — soiled textiles contaminate an entire bale.

Before any of this

The waste hierarchy puts recycling low down for good reason. Repair first: a laddered seam, a failed clasp, a perished waistband and a detached sole are all fixable, usually for a fraction of replacement cost. Reuse second: a swimsuit that has lost its shape still works under a wetsuit, a towel becomes cleaning cloth, a duvet is wanted by animal shelters. Only then recycling — and, before all of it, buying things built to survive being worn.

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