The Isolate 5000 Tights have a windproof and waterproof membrane that covers the thighs, down to the knees on the front of the tights. The rest of the tights are made from a stretch, brushed micro fleece liner. The Tights include ankle zips with reflective piping and a zipped hip pocket large enough for keys or an energy gel. The tights also include flatseam construction that helps to minimise chaffing and rubs spots.
In use the tights provide a good level of protection from the wind and rain and are certainly warm enough for most running activities you could undertake in the British winter. My main complaint is that the tights don't have a gusseted or diamond crotch, which means you get a very irritating excess of material between your legs whilst running, unless you constantly pull up the tights around the waist.
Also the protective membrane on the front of thighs is not stretchy and as a consequence I’ve struggled to find the right size… the medium felt a little tight but the large was way to long.
At £35 they are relatively cheap for such a well specified winter tight but seriously let down by the poorly designed crotch. Being Decathlon made you can’t help but wonder about the long-term durability. However, they come with a 2 year guarantee so I feel reassured.
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