Alpkit Yulex Wetsuit Review: Sustainable Yulex Natural Rubber Wetsuit

Alpkit

This report documents what Alpkit publishes about its ownership and supply chain. See the sourcing and transparency sections below. Alpkit’s supply-chain transparency is rated 4 out of 5.

Alpkit’s clothing and footwear range has been read product by product to the Throne Standard. Of the 316 Alpkit products scanned, 265 publish a fibre composition: 7.6% of the range is 100% plant fibre, 57% is synthetic, 13.6% is a plant and synthetic blend and 5.7% is animal fibre. The remaining 51 Alpkit products, almost all footwear and wetsuits, publish no fibre composition anywhere we can read, so they are counted in the range total and sit outside those percentages.

11 / 5Eco rating · Unnatural
316 products%
100% plant fibre13.7%
Animal fibre5.7%
Synthetic57.6%
Semi-synthetic0%
Unclear / unstated15.5%
Not stated7.5%

316 Products Scanned

2026-08-04
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What this scan could read
84.5%
of the range read
265 / 316
products with a published composition

Every product in Alpkit's live catalogue was retrieved and the fibre composition Alpkit publishes on that product page was read as written. Each composition was then checked again against the live page, so nothing here is inferred from a product name.

Not recorded (49): Alpkit publishes no readable fibre composition for these 49 products, almost all of them footwear, wetsuits and waterproof shells, where Alpkit describes the membrane and the construction rather than a fibre composition. They are counted in the range total and are shown as unstated in the breakdown, so the share of the range that could not be read stays visible.

See the 49 products with no published composition
  • Jeanius [Mens] Cordura® jeans
  • Parallax [Mens] Lightweight waterproof trousers
  • Element Wetsuit Vest [Mens] Front zip wetsuit vest
  • Aneto [Mens] Short sleeved tech shirt
  • Definition [Mens] Waterproof mountaineering jacket
  • Terrapin Natural Swimming Wetsuit [Mens] Men's natural feel outdoor swimming wetsuit
  • Go Nice Places Hoody [Mens] organic cotton and fair trade hoody
  • Tierra [Mens] Men's waterproof multi-activity shoe
  • Pilot [Mens] Men's waterproof leather walking boot
  • Montee [Mens] Men's Waterproof B2 Mountaineering Boot
  • Latitude [Mens] Men's waterproof walking shoes
  • Atlas [Mens] Men's waterproof walking boot
  • Alta Rocca [Mens] Men's technical waterproof walking boot
  • Sequence [Womens] climbing jeans
  • Parallax [Womens] Lightweight waterproof trousers
  • Lotic Swimming Wetsuit [Womens] outdoor swimming wetsuit
  • Element Wetsuit Jacket [Womens] Front zip wetsuit jacket
  • Jeanie [Womens] Cordura® jeans
  • Milford [Womens] Merino wool midlayer
  • Element Wetsuit Vest [Womens] Front zip wetsuit vest
  • Element Wetsuit Shorts [Womens] Wetsuit shorts
  • Terrapin Natural Swimming Wetsuit [Womens] Women's natural feel outdoor swimming wetsuit
  • Parallax [Womens] Lightweight waterproof trousers
  • Jura Mountain Smock [Womens] Pile fleece-lined windproof smock jacket
  • Milford [Womens] Merino wool midlayer
  • Definition [Womens] [2024] Waterproof mountaineering jacket
  • Element Wetsuit Pants [Womens] Wetsuit pants
  • Tierra [Womens] Women's waterproof multi-activity shoe
  • Montee [Womens] Women's Waterproof B2 Mountaineering Boot
  • Latitude [Womens] Women's waterproof walking shoes
  • El Chorro [Womens] Women's technical approach shoe
  • Atlas [Womens] Women's waterproof walking boot
  • Atalanta [Womens] 2.5-layer waterproof jacket (published: PU coated, 2.5 layer)
  • Sigma [Womens] 3-layer waterproof jacket (published: 3-layer construction with PFC-free DWR)
  • Sigma [Womens] 3-layer waterproof jacket
  • Katabatic [Womens] PrimaLoft® Gold Active jacket
  • Sonder [Womens]
  • Balance [Womens] breathable waterproof jacket
  • Rhythm Elite 3/4 Bib Tight [Womens] ¾ length bib tights
  • Pulsar [Womens] Waterproof half-zip jacket (published: 2.5 layer PU membrane)
  • Element Wetsuit Shorts [Mens] Wetsuit shorts
  • Aneto [Mens] Short sleeved tech shirt
  • El Chorro [Mens] Men's technical approach shoe
  • Sequence [Mens] climbing jeans
  • Gravitas [Womens] Ultra-lightweight waterproof jacket
  • Motion Short [Womens]
  • Pilot [Womens] Women's waterproof leather walking boot
  • Alta Rocca [Womens] Women's technical waterproof walking boot
  • Definition [Womens] Waterproof mountaineering jacket

Excluded: Nothing is excluded. Every product in the clothing and footwear range counts towards the percentages, including those with no published composition, which appear as unstated.

Red flags found while reading this brand
  • Two Alpkit products publish their composition with no space between fields, as "100% nylonMembrane: PUBacker: 100% polyester". The first reading missed both fibres because of it, and both are now recorded as synthetic.
  • The previous scan had indexed the whole Alpkit shop, books, maps and bikes included, so 77% of it returned no fibre and the range read as mostly unreadable. This scan covers the 316 clothing and footwear products only.
  • Composition is published four different ways on this site: a labelled Fabric line, an unlabelled paragraph, inside prose, and inside an escaped script payload. It took four passes to read them all.
  • 51 Alpkit products publish no fibre composition at all, almost all footwear, wetsuits and waterproof shells, where Alpkit describes the membrane rather than the fabric.
How we scan. Every figure on this page comes from the Throne Standard scan: we read the fibre composition off each live product on the brand’s own site, style by style, and count only single-fibre plant cloth (cotton, linen, hemp) as natural. Animal fibres such as wool, silk and cashmere and plastic-based synthetics such as polyester, nylon and elastane sit outside the plant-fibre figure, and regenerated fibres such as viscose, bamboo, modal and Tencel are counted as semi-synthetic. Percentages are calculated over the styles that state a composition; anything unlabelled is shown separately.

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