Therma Boost Thermal High Waisted Leggings

When the temperature drops my pain levels become too high to do my physio and these have proved the perfect solution. I’ve tried a number of other thermal leggings but there are few that are not designed to be worn under clothes or too rigid to exercise in. Would definitely buy these again.

I run in the fells an mountains every day and these are my favourite winter leggings. I know SB isn't thought of as a technical mountain brand but these are under-rated for performance gear. I even use as a base layer for ice climbing and winter mountaineering. Super flattering. No hardcore wind or water resistance, but breathe and stay pretty warm when soaked e.g. after stream crossings. They're not too small - they're TTS (and exactly the same as last winter) but you're not going to get away squeezing into a smaller size like you can with the powers. Might feel thin but still hold up - got tangled in brambles today and no rips.

I bought these in the Spring sale earlier in the year to replace previous pairs of "EcoTherm leggings" and finally got them out in recent weeks and I am so disappointed. I have noticed a general reduction in quality across a lot of SB leggings recently and these are no different, much thinner than previous versions and the fit feels cheap and baggy. I washed them after a couple of wears in hope that it might revive the fit but again after just one wear they have lost their shape and above all, they are not warm in the slightest. Only nice thing is the colour!

Fit nicely, very comfortable and will look forward to wearing these when it’s cooler.

I love the leggings however I have found the sizing to be inconsistent. I was given an XS pair a couple of years ago that fitted perfectly. So I ordered a pair in the same size last year, only to find them really quite tight. So thinking the sizes had changed, I ordered small this time around. These were huge, so I've had to return them and re-order an XS. I'm guessing the ultra small pair, were accidentally mis-labelled. Other than this, they're very good quality and comfortable.

I bought these in the sale for next winter as previous pairs were lovely for frosty runs. They feel soft and cosy hopefully will not get too warm during my runs, as my previous pairs did not. At 5 foot 3 I did order the full length which are slightly too long, but I think I will prefer that in the winter than a bit of bare leg with the 7/8th length, but I will have to wait for the colder weather to try them out. I find the pockets very useful, especially when running alone, I want my phone in case of any difficulties or harassment. Sad that this is how women have to prepare these days.