15-20mmHg (our Everyday line) is light-to-moderate compression, a good starting point for standing jobs, daily wear, and travel. 20-30mmHg (our Athletic line) is firm, medical-grade compression, generally recommended for diagnosed circulation conditions, post-surgical recovery, or serious athletic training and recovery. If you're unsure which is right for you, check with your doctor.

This is independent of compression level. Padded sole gives extra cushioning, ideal for standing on hard floors all day. Non-padded sole is a sleeker, lower-profile fit, better for tighter shoes or a more athletic feel. Neither is "better" — it comes down to your shoes and personal preference.

Compression socks are sized by ankle and calf circumference, not shoe size — this matters because a properly fitted sock is what ensures you actually get the compression level printed on the label. If you're between sizes, sizing up is usually the safer choice. See our Size Chart for exact measurements.

Snug and supportive, not painful. You shouldn't feel numbness, tingling, or lose circulation to your toes. If a sock feels too tight or leaves deep marks after removal, try sizing up. If you have a diagnosed circulation condition, follow your doctor's specific guidance on compression level and fit.

No — our Quarter, Low Cut, and No Show styles use a single, uniform level of compression rather than graduated compression. Our Knee High, Crew, and Predator Merino Wool lines are the ones built with graduated (mmHg-rated) compression.

Our Knee High compression socks (both 15-20mmHg and 20-30mmHg) are registered with the FDA as a Class 1 medical device. This specific registration applies to the Knee High line. Our Crew and Predator Merino Wool styles also use graduated compression but are not FDA registered. Our Quarter, Low Cut, and No Show styles use a single level of compression rather than graduated compression, and are also not FDA registered. All styles are built to the same manufacturing standards.

Yes — every SMOOTHTOE® sock, across every style, is made in the USA.

All SMOOTHTOE® socks come with a 30-day money-back guarantee. Most styles carry a 5-year warranty against heel and toe blow-outs; our Predator Merino Wool line carries a 1-year warranty. Many of our Knee High and Crew styles also include a blister-free guarantee.

Machine wash cold, tumble dry low. This helps preserve the compression fibers and keeps your socks performing at their intended compression level for longer.

Yes — free shipping on orders over $50.

We back every order with a 30-day money-back guarantee — if something isn't right, reach out and we'll make it right.