Quick answer
For a Great Lakes Loons infant bodysuit, size up if your baby is between standard sizes, especially for cotton styles that may shrink slightly. Newborn (0-3 months) fits most infants up to 12 pounds; 3-6 months works from 12-16 pounds; 6-9 months from 16-20 pounds; and 12 months from 20-24 pounds.
Why sizing varies by fabric
The two Great Lakes Loons infant bodysuits use different materials, which affects fit. The Pink Infant Bodysuit is 65% polyester and 35% cotton—a blend that holds its shape well and resists shrinking. The Kelly Green Infant Bodysuit is 100% cotton, which can shrink slightly after washing, especially in hot water. If you choose the all-cotton option, consider ordering one size up for a longer wear period.
Growth spurts and seasonal timing
Babies grow quickly, often jumping a size every few months. If you're buying for a future event or season, think about where your baby will be size-wise, not where they are now. A 3-month-old in summer may fit a 6-month size better by the time cooler weather arrives. When in doubt, size up for comfort and longevity.
How to choose the right size
- Check the weight range, not just age: Standard baby sizes are based on average weight ranges. Newborn (0-3 months) fits up to 12 pounds; 3-6 months for 12-16 pounds; 6-9 months for 16-20 pounds; 12 months for 20-24 pounds. Weigh your baby or estimate based on recent doctor visits. Use weight as your primary guide, not age alone.
- Account for growth in the next 2-3 months: Babies gain about 1-2 pounds per month in the first six months. If your baby is at the top of a weight range, buy the next size up so the bodysuit fits now and for several more weeks. Buying ahead saves you from needing a replacement too soon.
- Consider the fabric's shrinkage potential: The 100% cotton Kelly Green bodysuit may shrink up to one size after washing. The polyester-cotton blend Pink bodysuit is more dimensionally stable. For cotton, size up; for the blend, buy true to size. Read the fabric content before deciding on size adjustment.
Product details
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Great Lakes Loons Bimm Ridder Infant Bodysuit - Pink: 65% Polyester, 35% Cotton blend resists shrinking and holds shape. This bodysuit is a good choice if you want a consistent fit wash after wash, and it's less likely to become too small quickly.
Great Lakes Loons Bimm Ridder Infant Bodysuit - Pink
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Great Lakes Loons Kelly Green Infant Bodysuit: 100% cotton fabric may shrink slightly after washing. If you prefer natural fibers, order one size up so your baby gets more use before the bodysuit becomes snug.
Great Lakes Loons Kelly Green Infant Bodysuit
Which bodysuit fits best?
Best for
- Parents who want a low-maintenance, shrink-resistant option: choose the Pink Infant Bodysuit (polyester-cotton blend)
- Fans of natural fabrics who don't mind slight shrinkage: choose the Kelly Green Infant Bodysuit (100% cotton)
Not ideal for
- Parents who need a very loose fit for a rapidly growing baby: the 100% cotton bodysuit may become snug quickly if not sized up
