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11-12Y KIDS WINTER CLOTHING 2026

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Two pairs of boxer briefs laid flat on a white slatted background: one light gray and one black, both with elastic waistbands printed with the brand name NEW LEAGUE.
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    Sinsay Boy's Light Grey/Black 2-Pack Pajama Shorts
    $37.98$10.60→$6.89
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    Sinsay Girl's Light Beige Fleeced Pull On Style Elasticated Waistband Sweatpants
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      Sinsay Girl's Light Beige Fleeced Pull On Style Elasticated Waistband Sweatpants
      $23.98$10.60→$6.89
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      A young boy wearing a black puffer jacket and black snow pants with a bright yellow zipper and white text reading 'MOUNTAINS+GEO+ACTIVWEAR' sits in a snowy outdoor setting with mountains in the background.
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        Sinsay Boy's Black Active With Neon Yellow Zipper Details Sweatpants
        $19.98$18.00→$11.70
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        A child wearing a black hooded jacket with white contrast stitching over a red t-shirt, standing against a solid beige background. The jacket features a front zipper, a buttoned chest pocket, and a lower patch pocket with a 'SKATE KICK' brand label.
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          Sinsay Boy's Black Hooded Jacket With White Contrast Stitching
          $64.99$27.10→$17.62
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          A black puffer jacket with a brown faux-fur trimmed hood, featuring a white graphic print on the left chest, displayed against a light gray background.
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            Sinsay Boy's Black Faux Fur-Hooded Puffer Jacket
            $69.99$35.99→$23.39
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            Sinsay Girl's Black Long Hooded Puffer Jacket
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              Sinsay Girl's Black Long Hooded Puffer Jacket
              $59.99$29.99→$19.49
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              Sinsay Boy's Navy Blue Faux Fur Hooded Puffer Jacket
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                Sinsay Boy's Navy Blue Faux Fur Hooded Puffer Jacket
                $59.99$34.99→$22.74
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                A young girl models a beige double-breasted trench coat over a white patterned top and blue flared jeans, styled with black flats and a small gray handbag against a solid beige studio background.
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                  Sinsay Girl's Beige Double-Breasted Trench Coat
                  $89.99$34.99→$22.74
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                  Sinsay Boy's Navy Holidays Printed Blouse
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                    Sinsay Boy's Navy Holidays Printed Blouse
                    $29.99$9.99→$6.49
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                    Sinsay Boy's Black Crewneck Blouse
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                      Sinsay Boy's Black Crewneck Blouse
                      $29.99$9.99→$6.49
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                      A young girl with blonde hair wearing a dark navy blue oversized pullover hoodie and light wash blue jeans, standing against a plain white studio background.
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                        Sinsay Girl's Navy Basic Hoodie
                        $44.99$18.00→$11.70
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                        A light mint green crewneck sweatshirt with long sleeves and ribbed cuffs and hem, displayed flat against a light gray background.
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                          Sinsay Girl's Light Turquoise Plain Long-Sleeved Sweatshirt
                          $49.99$13.99→$9.09
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                          A young girl with long brown hair wearing a pale yellow-green hooded sweatshirt with a small embroidered logo on the chest, paired with pink and white striped pants, set against a plain gray studio background.
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                            Sinsay Girl's Lime Yellow Embroidery Sweatshirt
                            $49.99$13.99→$9.09
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                            A dark gray hooded rain jacket with a full front zipper and two vertical zippered pockets, displayed against a light gray background.
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                              Sinsay Boy's Dark Grey Raincoat Jacket
                              $44.99$23.00→$14.95
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                              A child model wearing a black crewneck sweatshirt with white 'BEETJUICE' text and skull graphics, paired with beige and brown leopard-print pants and black shoes, standing against a light gray studio background.
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                                Sinsay Girl's Black Beetlejuice Sweatshirt
                                $49.99$13.99→$9.09
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                                A young boy wearing a navy blue Christmas sweater with white and red holiday patterns, paired with blue jeans, standing against a solid gray background.
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                                  Sinsay Boy's Navy Scandinavian Motif Sweater
                                  $49.99$20.90→$13.59
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                                  A dark gray crewneck sweatshirt featuring a white graphic print on the front that reads 'NEW YORK CITY SCHOOL OF ARTS' with a circular emblem in the center and mirrored text below, displayed on a light gray background.
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                                    Sinsay Girl's Dark Grey Round Neck Sweatshirt
                                    $49.99$20.00→$13.00
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                                    A light gray heather zip-up hoodie with a drawstring hood and front pockets, displayed flat against a light gray background.
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                                      Sinsay Girl's Light Grey Sport Hooded Jacket
                                      $44.99$20.00→$13.00
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                                      A young girl smiling while wearing a pink, red, and green Christmas knit sweater with gingerbread men and snowflake patterns, paired with blue jeans, against a solid gray studio background.
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                                        Sinsay Girl's Multicolor Christmas Festive Sweater
                                        $49.99$23.25→$15.11
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                                        A young girl with blonde hair wearing a light blue knit sweater and black wide-leg trousers, standing against a neutral gray studio background.
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                                          Sinsay Girls Light Blue Ribbed Knit Sweater
                                          $44.99$14.99→$9.74
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                                          Sinsay Girl's Beige Double Breasted Trench Coat
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                                            Sinsay Girl's Beige Double Breasted Trench Coat
                                            $69.99$39.00→$25.35
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                                            A young girl wearing a black faux-leather bomber jacket over a white t-shirt and light gray sweatpants, standing outdoors in front of a stone column.
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                                              Sinsay Girl's Dark Grey Bomber Jacket Made Of Faux Leather
                                              $59.99$27.12→$17.63
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                                              A young boy wearing a red knit sweater with a white Nordic pattern, paired with dark gray pants, photographed against a light gray studio background.
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                                                Sinsay Boy's Red Sweater With White Pattern
                                                $44.99$20.00→$13.00
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                                                A young girl with blonde hair stands against a light gray studio background wearing a cream cable-knit mock-neck sweater and a black skirt.
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                                                  Sinsay Girl's Beige Cable-Knit Crewneck Long Sleeve Sweater
                                                  $44.99$20.99→$13.64
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