evo.com | Helly Hansen Long Underwear Sets > A good, wicking baselayer is key to your kids' comfort in the mountains, and they don't get much better than the Helly Hansen Lifa Merino Midweight Baselayer Set. Built with LIFA(R) MERINO just like the grownup version, and built to last, the Midweight Baselayer set is the way for any active junior skier or snowboarder. Regular Fit Flatlock Seams for Comfort LIFA(R) Stripe Elastic Waist LIFA(R) MERINO 57% Merino Wool, 43% Polypropylene with a 100% Polyester underlayer | Kid's Helly Hansen Lifa Midweight Baselayer Set 2026 - 12 Green | Wool/Polyester