Whatever your age, if you’re taking on long hiking expeditions of any difficulty, you should be properly kitted out. UpHillSport “Kevo” Jr Trekking 4 Layer M4 Socks are multilayer walking socks in smaller sizes, constructed in Finland (and named for a beautiful but seasonally variable wilderness area in Lapland) with a blend of efficient Coolmax fabric and merino wool. The four-layered, medium thickness DryTech structure provides warmth, moisture control, and breathability to thermal grade 4. The foot section has a Y-shape fitted heel and arch band in the mid-foot to keep the sock in place on the foot. This, along with a terry loop cushioned half-foot and smooth toe seams ensure wearers stay blister-free. All UphillSport socks incorporating merino come from mulesing free farming sources.