Whether you’re training for a 5K or running for fun, the brightening skies and climbing temperatures of spring provide plenty of motivation to get outside and hit the trails. But even when it’s warm enough for sandals and sundresses mid-day, the times when you’re most likely free to run — think early morning and in the evening after work — are often chilly.

Smart layering can keep you comfortable and keep you warm so you’re not shivering during your warm up and cool down. Since you’re not dealing with freezing temperatures, you can leave the heavy sweat pants and fleece zip-ups at home. In fact, you’ll probably only need a layer of Cuddl Duds on the top or on the bottom instead of wearing a full set.

On the bottom, Cuddl Duds Activewear Lightweight Pant can double as running tights. For added, humble, coverage slip a pair of running shorts or a running skirt over the pants. Or go for a warm shirt. On top, wear a Cuddl Duds Activewear Lightweight Crew Neck Longsleeve underneath your favorite running short-sleeve tee or a lightweight jacket. Both of these running outfits will keep you light on your feet and help you stay warm so you can enjoy your run.

With budding trees and blooming flowers, spring is a beautiful time to go camping. But as you indulge in spring fever, remember that even if it’s sunny and 70 degrees during the day, temps will likely dip to the 50s or even 40s at night. Unless you plan to sit around the campfire eating s’mores ‘til the sun comes up, you’ll need to layer on warmth—luckily that doesn’t mean you need to grab a pack of that dorky thermal underwear at the camping store.

Cuddl Duds are the perfect early spring camping base layer. Pack two sets with you so you’ll have one for sleeping and one for activities. Before you snuggle into your sleeping bag for the night, slip into a set of Climatesmart Cuddl Duds. If it’s really cold, you can layer a hoodie or sweatpants over top, too.

When you wake up and want to go for pre-breakfast hike, the Activewear Lightweight collection is the right way to go. Layer a fleece or puffy vest over a long sleeve Cuddl Duds top. If you luck out with good weather, you’ll be able to ditch your Cuddl Duds for most of the day for tees and tanks, but when the sun sets, we bet you’ll want those warm layers again!