Shopping for a girl in a size 18 or Girls Plus is hard, because most gift lists stop at size 16. These are real gifts that fit her: plus-size swimwear for the indoor pool or a winter trip, cozy gear for swim team, and no-size stocking stuffers she'll use every day.
Order early
Girls Plus sizes sell through fast in December. Order by early December for holiday delivery, and add a gift receipt for clothing.
Every link below was checked in October 2026. Prices and stock change daily, so tap through to see today's price.
Lands' EndA dedicated Girls Plus swim section: sporty hi-neck one-pieces, crossback one-pieces, UPF 50 rash guards and chlorine-resistant swim skirts. A gift she can use at the indoor pool all winter and at the beach next summer.
Lands' EndFull-coverage sun protection in true girls plus sizing. Pair it with a swim skirt or swim shorts for a modest set she'll actually wear. Find it in the Girls Plus swim section.
AmazonThe biggest single selection of girls plus one-pieces and tankinis, with Prime shipping before the holidays. Filter by size 18 or XXL and read recent fit reviews.
AmazonA warm, oversized changing robe for swim team, the beach or cold sidelines. Sherpa lining, a big hood and room to change underneath. Sizes run from kids and teens up to adult XL, so it fits a size 18 with room to spare.
AmazonThe bottle every teen wants right now. Insulated, leak-proof twist top, sip through the straw or swig, and it fits a backpack side pocket. Lots of colors.
AmazonClassic racing goggles with anti-fog, UV protection and interchangeable nosepieces. One size fits teens and adults, a great add-on gift for a swimmer.
AmazonA roll-top dry bag that keeps towels, phone and clothes dry at the pool, lake or beach. Comes with a waterproof phone pouch and a shoulder strap. Many colors.
TargetBudget-friendly Cat & Jack plus styles you can grab with holiday shopping. Stock in winter is limited, so check online and choose store pickup.
SwimHerSwimwear designed for girls and teens who want more coverage and comfort, from a smaller brand worth knowing about.
A girls 18 is roughly a women's XS to S in the chest, but with a shorter torso and less bust shaping. Girls Plus 18 is wider through the waist and hips. When gifting, check the retailer's size chart against her current best-fitting piece.
Yes, if she swims indoors, has a winter trip or is on a swim team. Winter is also when girls plus sizes are easiest to find, before the spring rush sells out size 18.
Choose a no-size gift like the water bottle, goggles or dry bag, or a roomy item like the swim parka, and add a gift receipt so she can exchange clothing.
More size help: girls size 18 swimsuits, modest swimsuits and girls plus activewear.