My son is 3 1/2 but has 2 adjustable straps which are great for both my toddler and 7 year old. I've tried this on my adult female head and it's a little tight but will work in a pinch. It has ventilated holes at the top of the hat and a detachable neck flap + chin strap.
Reversible Boys' Accessories: NIce Caps Breathable Protection Hats & Caps
50 Review
Stylish Safari Bucket Hats for Boys - Home Prefer Breathable Accessories and Caps
45 Review
Connectyle Toddler Bucket Protection Green Boys' Accessories for Hats & Caps
53 Review
Versatile Foldable Sun Hat with Adjustable Drawstring - Boys' Essential Hat & Cap Accessory
46 Review
🧣 Warm Winter Chenille Cashmere Stretchy Boys' Accessories by Motarto
39 Review
YukiniYa Kids Winter Gloves: Thick, Soft Fleece for Warmth, Touch Screen, Anti-Slip – Ideal for Boys & Girls Aged 3-15 Years, Perfect for Cycling & School
45 Review
ORVINNER Kids Winter Gloves - 3 Pairs Children Warm Wool Lined Gloves for Boys and Girls, Toddler Thermal Knitted Mittens
45 Review
❄️ Coobey Pairs Gloves: Winter Stretchy Boys' Accessories for Optimal Cold Weather Comfort
44 Review