I actually messed up in my above "report"..
I am 32 in Boss pants (yeah i forgot they had a 32..but i wrote this down because i keep a list), and a 36 in balenciaga pants was actually too big. i hear balenciaga varies in sizing though..so i dont know how helpful that is!
J. Brand - 24
Ezra Fitch - 24
Barbara Bui - 34 (pants)
Club Monaco - 0 too big (everything)
Raven - size 0 low rise pants fit but didn't love them at all
Superfine - 25 was too big!!! rrrrrrrrrrr they felt so comfortable
Seven "A Pocket" jeans - 24 is too tight in the waist. 25 is too big. bad cut for my body type.
radcliffe - size 25 is too big...i wish they came in 24
Habitual - size 24
Phillip Lim - size 0 too big.
Martin Margiela - M, 46, II
Dries van Noten - M, 48
Veronique Branquinho - 48
Ann Demeulemeester - S
Viktor and Rolf - 46
Miu miu - M, 39 (shirt)
Agnes B - 1
APC - 1
Jil Sander - M, 48, 32 (jeans)
Helmut Lang - S, 46, 30 (jeans)
Dior Homme - M, 48
Neil Barrett - S
Dirk Bikkembergs - S
Dirk Schonberger - 46 (pants)
Raf Simons - 48
I would love to hear from other guys so that I can have an idea about the relative sizing among men's designers (very handy when it comes to online shopping).
I can't remember who labels their shirts with 15 or 38 or 48, so treat them interchangably.
Costume National Homme- 46 for pants. 38US/48EU for blazers/coats. M for tees. I have one size 48 shirt. It's looser than I expected, so they may run a little bit big.
Prada- M or 48 for shirts. The shirts run a little small, so I've gotten by with a 39. 46 for pants and jeans. 8.5 for shoes
Miu Miu- 46 pants. I have a pair of 31 jeans. I could probably get by with a 30. 8.5 for shoes (sneakers). I have a 39 shirt. It fits well. I'm unsure of whether I'd fit their 38, but it may just be that my shirt is cut differently than average. Medium for tees
Gucci- 46 for pants. 41.5 or 9US for shoes (lace up dress shoe and loafer respectively)
Alexander McQueen- 48 for shirts (tee and button downs), 46 for men's pants. 44 for women's. 48 for suits and blazers. The jackets run a little tighter than average.
Jil Sander- 46 for pants. I have some 31 jeans/casual pants. I could probably squeeze into a 30, but I've never had access to those. 48 or M for shirts. The new Raf designed tees are slightly tighter than some of the older ones. 48 for outerwear and presumably suits.
Nudie- Jeans- 31
CdG Shirt- Pants- Small
Roberto Cavalli- Pants/jeans- Small. Shirts- 48
Helmut Lang- Tee: M
Hussein Chalayan- tee: 48
Etro: Shirts- 48. Tees- I have Small and Medium. I don't understand the sizing of their pants. I have a 2 pairs of dress pants and some jeans that are labeled 33. They fit well enough that I don't need a belt at all, so I assume they do everything 2 sizes up (since I'm normally a 31).
Emporio Armani/Armani Collezioni- 48 for suits/coats
Burberry- 38 for shirts. I only have London not Prorsum. I assume it's the same.
Dior- M for tees
Dries Van Noten- 48 for suits
Margiela 10- 48 for a blazer
Moschino Jeans- M for a tee
I don't know the sizes for all of the mall brands. The jackets and blazers are always too large. I usually end up with a S shirt, but they rarely fit well.
I might like you if you look like you could be a character in a Bresson film.
items with (*) are brands that fit particularly well consistently, with no alterations needed except hem shortening.
James Perse - 1
La Cosa - 40 or 42 fit equally nicely
American Apparel - S
Mark & Estel - XS
YSL - 34, but always needs alterations since it runs a little big in the shoulders and hips
Stella McCartney - 36
* Alexander McQueen - 38
* Dolce & Gabbana - 38, but can fit into 40 no problem
Ann Demeulemeester - 36
CdG/Watanabe - S
Missoni - 38
Catherine Malandrino - 0, but even then it fits a little big
Balenciaga - 36, can do 38 in bottoms
Rick Owens - 38, can fit into 40 for jackets
Jil Sander - 34 for dresses; bottoms (skirts and pants) are too big in 34
Vivienne Westwood - 38, some tops/dresses 40
Margiela - 38, but runs a little big
Prada/Miu Miu - 38
Vanessa Bruno - 1
Paul & Joe - 1 or 36, but runs big; 34 would be perfect but impossible to find
Tibi - 0, can fit into 2 for dresses and bottoms
Rebecca Taylor - 0, sometimes 2
Nanette Lepore - 0 for tops and dresses, most bottoms are big in 0
Theory - 0 for Max C pants, 00 for other styles, XS/0 for tops and dresses
Trina Turk - 0 for tops and dresses, but bottoms are too wide in the hips
3.1 Phillip Lim - 0/XS
* Paige - I own both 24 and 25
JBrand - 23 for ink wash, 24 for all other washes
Rag & Bone - 25
* Diesel - 25
Superfine - 25
Louboutin patent leather - 36.5; all other Louboutin - 36
Chanel - 36; Chanel boots w/ socks - 36.5
Alaia - 35.5
Miu Miu and Prada - 35.5
Marc Jacobs - 36
YSL - 36 for recent collections, 36.5 for older collections, 37 for vintage
Manolo Blahnik - 36
Givenchy - 35.5
Loeffler Randall - 36, but can do 36.5 for boots w/ winter socks
French Sole/London Sole ballet flats - 37
Never knew such a thread existed! Very helpful! I only shop online and usually buy from brands that aren't available here, so it's really annoying when the online shop just states "This item fits true to size" for everything and it's just not true
Measurements: 5'7, 33.5 - 21.5 - 34.5
Current / Elliott (my faves): 24
J Brand: 24, 25, 26 (depending on the wash!)
D&G: 25, 26
Pepe Jeans: 26
Tally Weijl: 34 for non-stretch jeans and 32 for stretch jeans
most other brands / designers I've tried on: 25
And my ideal inseam lenght for jeans is 32in.
Tops and Jackets:
For tops I just always order the smallest size. Never had a problem with sizing in tops, except for tops from H&M and Zara being too short sometimes, because I have a long torso.
blue notch 25" a little big
joe's jeans 24" too big
j. crew 00 too big
zara XS too big
topshop petite 24" 28 inseam too short, 25" too big
seven for all mankind 24"
kova & t 25"
j brand 24"
juicy couture 24"
h&m 2 usually too big
free people xs usually too big
smallest size at abercrombie way too big
sophomore xs too big
uo xs too big
blank nyc 25"..fit funny though
cheap monday 24"
bdg smallest size way too big
bcbg xxs fits perfectly. actually my bcbg xxs blazer is probably the only item of clothing i own that fits me 100% right without any alterations
aqua xs too big
express 0 too big
topshop 2 or petite 0
j crew & zara both too big, free people usually too big
i like tops big so i usually buy a small or even a medium (err 2-4 or 6), xs is a "true fit" tho in most stores. for jackets/coats/blazers i usually am xxs/xs or 0/00
steven alan xs big
apc xs sometimes too big
mbmj xs too big
free people 0 sometimes too big
topshop 2 or petite 0
h&m whatever the smallest size is..sometimes too big depending on the cut
i usually just buy the smallest size available and it usually fits pretty ok. if it's a more form-fitting dress i'll buy the next smallest size available coz i don't like skintight clothes, which sometimes ends up working and sometimes it totally doesn't
urban outfitters xs too big
stella mccartney 36 big
see by chloe 38 too big
french connection 0 sometimes too big
and in shoes i'm usually a 6.5 or 7. if they're flats or something i don't wear socks with i'll buy a 6.5