Quick Answer

For warm-weather breathability, choose the Pool Organic Pique Knotted Hat; for cooler days and cozy warmth, the Midnight Organic Thermal Knotted Cap is the better pick.

Material Differences and What They Mean for Your Baby

The main difference comes down to fabric construction. The Pool hat uses a pique weave—a textured, breathable cotton that feels crisp and airy, ideal for keeping little heads cool in warmer months. The Midnight cap uses a thermal knit, which traps warmth in its waffle-like texture, making it the go-to for chilly mornings or air-conditioned rooms.

Both are made from 100% GOTS-certified organic cotton, so you don't have to worry about harsh chemicals or irritants against your baby's skin. The choice really hinges on the temperature and the level of warmth you need.

Fit and Adjustability: Knots That Grow With Baby

Both hats feature a knotted top that lets you adjust the fit as your baby grows. This is a practical design that extends the hat's usability beyond the newborn stage. The Pool hat is described as fitting 'nice and snug' and covering baby's ears, while the Midnight cap fits 'comfortably snug around the forehead and ears'—so both offer a secure, cozy fit without being too tight.

The Trade-Off: Breathability vs. Warmth

  • Warm Weather (above 75°F): Choose the Pool Organic Pique Knotted Hat. Its breathable pique weave helps prevent overheating and keeps your baby comfortable during spring and summer outings. Look for breathable fabrics like pique when dressing for warm days.
  • Cool Weather (below 65°F): Choose the Midnight Organic Thermal Knotted Cap. The thermal knit traps heat to keep your baby's head and ears warm during fall, winter, or early spring. For chilly days, prioritize insulation over breathability.
  • Transitional Weather (65-75°F): Consider layering: start with the pique hat and switch to the thermal cap if the temperature drops or the wind picks up. Both hats are easy to pack in a diaper bag. Having both options on hand lets you adapt to changing conditions.

Product Facts

  • Pool | Organic Pique Knotted Hat: Double layered with 100% GOTS-certified organic cotton pique fabric on the outside and a soft organic waffle fabric lining. The pique outer is breathable and the waffle lining adds a touch of softness, making this hat comfortable for warmer weather while still feeling gentle on the skin.

    Pool | Organic Pique Knotted Hat

    Pool | Organic Pique Knotted Hat

  • Midnight | Organic Thermal Knotted Cap: GOTS certified 100% organic cotton with a thermal knit that fits comfortably snug around the forehead and ears. The thermal knit provides extra insulation, making this cap the warmer choice for cooler days or chilly evenings.

    Midnight | Organic Thermal Knotted Cap

    Midnight | Organic Thermal Knotted Cap

Which Hat Fits Your Baby's Needs?

Best for

  • Parents looking for a breathable, lightweight hat for warm weather or indoor use.
  • Babies with sensitive skin who need soft, organic materials against their head and ears.

Not for

  • Very cold climates or winter outdoor activities—the pique hat is too breathable for freezing temperatures.