This softshell from Mammut comes midway on the spectrum of these jackets that fill in the gap between seam-sealed waterproof hardshells and super-light windshirts. The Rab Runbold Trail SO is made from Mammut’s SOFtech fabric which in use proved itself able to withstand light showers whilst also offering some protection against wind. The soft feel on the inside makes it very comfortable to wear over a short sleeved base layer and the fabric is super stretchy giving loads of movement in the arms and also the neck when wearing the hood. Breathability is good and there are pockets for venting, although for warmer conditions I’d prefer underarm panels in a thinner fabric. For this Scottish summer so far its been the perfect all-day jacket which I’ve been happy to continue wearing under a waterproof during bursts of heavier rain without becoming overly sweaty. While the fabric feels super soft it hasn’t been easily snagged or had threads pulled by passing brambles or rubbing a waterproof jacket worn on top. A tiny bit of stitching under one of the arms has come away and has required a stitch to stop the sewn line from unravelling.
The general fit is fairly relaxed allowing a microfleece and baselayer underneath in colder conditions. The velcro wrist adjusters allow the sleeves to be pushed up to the elbows and the hem can be pulled in with a hidden draw cord. The length is average, taller folk may prefer a scooped back, the arm length is generous. The hood moves with your head, has a small elasticated panel at the back, small peak and adjusting cord that is well hidden so doesn’t sting you in the face in windy conditions when the hood is on tightly. The hood is compatible with helmets but is not designed to fit well under a helmet as it tends to restrict all round vision. There is a small hook which allows the hood to be rolled away but this is fiddly and still results in a lot of hood material at the sides. There are two large handwarmer pockets, the bottom half of both are compromised by a rucksack hip belt so an added chest pocket would have been a useful addition. The jacket is designed be stowed in one of these pockets forming a very small package useful on a backpacking trip where volume is an issue. The robust YKK front zip is protected by a rear storm flap.
The size S jacket tested here weighed in at 365g. Mammut sizes come in a 6 sizes ranging from XXS to XL. In addition to this lurid Barbie-pink number (officially Magenta) the women’s jacket comes in graphite grey and a pleasant blue colourway, the men’s version is available in light green, blue, black and red and 5 sizes from S to XXXL and has the missing chest pocket (presumably women will be carrying handbags?!).
Overall a really useful robust soft shell for everyday spring to autumn use when you may need some wind protection in an all day, fairly lightweight jacket that easily packs down.