Finance and Business What size is a 30 in BKE? What size is a 30 in BKE? Size Waist ---- ----- 29 29 30 30 31 31 32 32 What does the R stand for on Buckle jeans? REGULAR. Tyler straight. RELAXED fit. No one wears your jeans like you do. More inseams, sizes, and options than ever before – because the right fit is everything. Related Posts:Whats the difference between slim and straight leg jeans?What is the difference between regular fit and relaxed fit jeans?What are the best jeans for muscular thighs?What men's jeans are in style 2021?