Both "warm-up" and "warmup" are commonly used, but "warm-up" with a hyphen is the more traditional spelling, especially when referring to the activity or routine you do before exercise or physical activity. You'll often see "warm-up" used for clothing and gear designed to help you stay comfortable before or after workouts. "Warmup" (one word) is sometimes used as a noun or adjective, but either form is widely understood. When shopping for apparel, you'll likely see both versions in product names and descriptions.

A warm-up is a short routine you do before more intense physical activity to help prepare your body. It usually involves light movement, stretching, or easy exercises that gradually increase your heart rate and loosen your muscles. In the context of clothing, "warm-up" apparel refers to comfortable, often layered pieces like sweatpants, hoodies, or track jackets that keep you cozy before, during, or after exercise. These items are also great for lounging or running errands when you want to stay warm and relaxed.

• Arm circles: Loosen your shoulders by gently rotating your arms in circles.
• Leg swings: Stand on one leg and swing the other forward and back to warm up your hips.
• Marching in place: Lift your knees high to get your blood flowing.
• Torso twists: Rotate your upper body side to side to loosen your core.
• Light jogging or walking: Move at a comfortable pace to gently raise your heart rate.

These exercises can help you get ready for more strenuous activity. Always listen to your body and adjust as needed.

Choosing the right size for warm-up clothing like hoodies, sweatpants, or jackets is all about comfort and fit. Here are a few tips:

• Check the size chart: Most product pages have a size guide—compare your measurements to find your best fit.
• Consider layering: If you plan to wear layers underneath, you might want a slightly looser fit.
• Read reviews: Other shoppers often mention if items run large or small.
• Look for adjustable features: Drawstrings, elastic waists, and cuffs can help you customize the fit.

If you’re unsure, Walmart’s easy returns make it simple to exchange for a different size.

To keep your fleece and sherpa warm-up clothes looking and feeling great, follow these tips:

• Wash in cold water: Use a gentle cycle to help preserve softness and prevent shrinking.
• Avoid fabric softeners: These can coat fibers and reduce fluffiness.
• Air dry or tumble dry low: High heat can damage the fabric or cause pilling.
• Turn items inside out: This helps protect the outer surface during washing.

Always check the care label for specific instructions, as some pieces may have special requirements.