I know they're 'only' boots, but after trying out about 5 pairs, I finally found the Salomon Launch Boa boots (size 10 when I'm usually a 9.5) are the right fit for
HEAD Snowboard Boots Ladies Size EU36.5, US6.5, UK4, Mondo 230 Mm B - Etsy UK
SNAKEBOOT Snowboard Boots Size EU44 US10.5 UK9.5 Mondo 295 mm
Rent Snowboard boots size 5 (38) in Glasgow (rent for £5.00 / day, £3.57 / week)
Thirtytwo quick fit snowboard boots size 5 uk - good condition used once
CRAZY CREEK Snowboard Boots Size EU41, US8.5, UK7.5, Mondo 262 Mm - Etsy UK
THIRTYTWO Snowboard Boots Size EU42.5, US9.5, UK8.5, Unisex Mondo 270 mm
New Vans World Traveler Switch Compatible step-in Snowboard boots Women's size 5