Kids · Boys'
Size-matched gloves for 4 year olds, with color and style notes typically preferred by boys in this age range. Fit remains the priority — pattern and color second.
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Diamondback
Adult half-finger glove sized by hand circumference — most riders fall in the M-L range.

Woom
Sized XS-XL by hand circumference. Multiple colorways available on the parent listing.
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Four-year-olds are often ready to move from a balance bike to a pedal bike, or from training wheels to riding independently. Most children this age fit a 12" or 14" wheel bike, depending on their height. The right bike allows your child to sit on the saddle and touch the ground with the balls of their feet. If your child has been riding a balance bike, they may be ready to go straight to a pedal bike without training wheels — many 4-year-olds make this jump successfully. A coaster brake (pedal backward to stop) is still the easiest braking system for this age, though some children can begin learning hand brakes. Bike weight remains important: a too-heavy bike makes pedaling and balancing harder.
Measure hand circumference at the widest point across your palm, just below the knuckles, with the tape snug but not compressing the hand. Exclude the thumb. Most brands size: XS 6–7", S 7–7.5", M 7.5–8", L 8–9", XL 9–10". Italian brands (Castelli, Sportful) often run a half-size small; US brands (Giro, Pearl Izumi) size true. Kids gloves are usually sold by age band — XS (3–5 yrs), S (5–7), M (7–10), L (10–13) — but always cross-check against the brand's circumference chart because hand size varies more than age does.