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Tenaya Mastia sizing

Size down about 1½ sizes from your street shoe

For a snug all-round fit, a street UK 9 (EU 43) is a UK 7½ (EU 41⅓) in the Mastia. Go half a size smaller for hard bouldering, or bigger for long days. It's a starting point: feet differ, so try them on if you can.

Your size in the Mastia

Your street shoe size

UK9

Aggressive

Tight, hard bouldering

UK7EU 40½

Recommended

Snug all-rounder

UK7½EU 41⅓

Relaxed

Long sessions

UK8EU 42

Comfort

Beginners, multi-pitch

UK8½EU 42⅔
Your size in all 292 shoes

Tenaya Mastia size chart

Your street size, then the size to get for each fit. From Tenaya's size chart and how this model runs.

Tenaya Mastia size chart
StreetAggressiveRecommendedRelaxedComfort
UK 4EU 37UK 2EU 34⅓UK 2½EU 34.9UK 3EU 35.6UK 3½EU 36.2
UK 4½EU 37½UK 2½EU 34.9UK 3EU 35.6UK 3½EU 36.2UK 3½EU 36.2
UK 5EU 38UK 3EU 35.6UK 3½EU 36.2UK 3½EU 36.2UK 4½EU 37½
UK 5½EU 38½UK 3½EU 36.2UK 3½EU 36.2UK 4½EU 37½UK 5EU 38.1
UK 6EU 39½UK 3½EU 36.2UK 4½EU 37½UK 5EU 38.1UK 5½EU 38.8
UK 6½EU 40UK 4½EU 37½UK 5EU 38.1UK 5½EU 38.8UK 6EU 39.4
UK 7EU 40½UK 5EU 38.1UK 5½EU 38.8UK 6EU 39.4UK 6½EU 40
UK 7½EU 41½UK 5½EU 38.8UK 6EU 39.4UK 6½EU 40UK 7EU 40½
UK 8EU 42UK 6EU 39.4UK 6½EU 40UK 7EU 40½UK 7½EU 41⅓
UK 8½EU 42½UK 6½EU 40UK 7EU 40½UK 7½EU 41⅓UK 8EU 42
UK 9EU 43UK 7EU 40½UK 7½EU 41⅓UK 8EU 42UK 8½EU 42⅔
UK 9½EU 44UK 7½EU 41⅓UK 8EU 42UK 8½EU 42⅔UK 9EU 43.2
UK 10EU 44½UK 8EU 42UK 8½EU 42⅔UK 9EU 43.2UK 9½EU 43.9
UK 10½EU 45UK 8½EU 42⅔UK 9EU 43.2UK 9½EU 43.9UK 10EU 44½
UK 11EU 45½UK 9EU 43.2UK 9½EU 43.9UK 10EU 44½UK 10½EU 45.2

Specs

Rubber
Vibram XS Grip, 3.5 mm
Closure
velcro
Made for
sport, bouldering
Tenaya product page

More Tenaya shoes

Tenaya sizing →

Estimates. Fit depends on foot shape and preference.