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A1 Envelopes

 

A1 envelopes measure 3 5/8 x 5 1/8 and are commonly used to mail RSVP cards for weddings and invitations. A1 envelopes are offered in a rainbow of colors, in fact close to 100 colors to choose from. You can order A1 envelopes printed by LCI Paper or blank to print yourself (free A1 envelope templates available). Mix and match with 3 1/2 x 4 7/8 A1 blank cards for the perfect note or RSVP card and envelope set.

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A1 Royal Sundance White Envelopes - Straight Flap, 70T
 
White Royal Sundance Envelopes 3 5/8 x 5 1/8 - Straight Flap - Felt
$190.30per 2500 Pack
A1 Royal Sundance White Envelopes - Straight Flap, 80T
 
White Royal Sundance Envelopes 3 5/8 x 5 1/8 - Straight Flap - Felt
$209.07per 2500 Pack
A1 Royal Sundance White Envelopes - Pointed Flap, 70T
 
White Royal Sundance Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Felt
$283.29per 2500 Pack
A1 Royal Sundance White Envelopes - Pointed Flap, 80T
 
White Royal Sundance Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Felt
$308.23per 2500 Pack
A1 Poptone Orange Fizz Envelopes - Straight Flap, 70T
17 More Colors >
 
Orange Fizz Poptone Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$54.90per 250 Pack
A1 Poptone Lemon Drop Envelopes - Euro Flap, 70T
17 More Colors >
 
Lemon Drop Poptone Envelopes 3 5/8 x 5 1/8 - Euro Flap - Matte
$54.90per 250 Pack
A1 Plike Black Envelopes - Straight Flap, 95T
 
Black Plike Envelopes 3 5/8 x 5 1/8 - Straight Flap - Smooth Tactile
$342.77per 2000 Pack
A1 Plike White Envelopes - Pointed Flap, 95T
 
White Plike Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Smooth Tactile
$396.84per 2000 Pack
A1 Parchtone Aged Envelopes - Straight Flap, 60T
 
Aged Parchtone-Envelopes 3 5/8 x 5 1/8 - Straight Flap - Parchment
$26.80per 250 Pack
A1 Kraft-Tone Standard Black Kraft Envelopes - Straight Flap, 70T
5 More Colors >
 
Standard Black Kraft Kraft-Tone Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$32.59per 250 Pack
A1 Glo-Tone Yellow Light Envelopes - Straight Flap, 60T
2 More Colors >
 
Yellow Light Glo-Tone Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$17.93per 250 Pack
A1 Dur-O-Tone Steel Grey Envelopes - Straight Flap, 70T
 
Steel Grey Dur-O-Tone Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$38.18per 250 Pack
A1 Dur-O-Tone Butcher Orange Envelopes - Straight Flap, 60T
 
Butcher Orange Dur-O-Tone Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$33.90per 250 Pack
A1 Classic Linen Solar White Envelopes - Straight Flap, 80T
 
Solar White Classic Linen Envelopes 3 5/8 x 5 1/8 - Straight Flap - Linen
$277.95per 2500 Pack
A1 Astroparche White Envelopes - Straight Flap, 60T
2 More Colors >
 
White Astroparche Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$197.32per 2500 Pack
A1 Astroparche Shell Envelopes - Pointed Flap, 60T
2 More Colors >
 
Shell Astroparche Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Matte
$297.62per 2500 Pack
A1 Astrobright Vulcan Green Envelopes - Straight Flap, 60T
18 More Colors >
 
Vulcan Green Astrobright Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$176.89per 2500 Pack
A1 Astrobright Terra Green Envelopes - Straight Flap, 70T
 
Terra Green Astrobright Envelopes 3 5/8 x 5 1/8 - Straight Flap - Matte
$197.09per 2500 Pack
A1 Astrobright Vulcan Green Envelopes - Pointed Flap, 60T
18 More Colors >
 
Vulcan Green Astrobright Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Matte
$278.39per 2500 Pack
A1 Astrobright Terra Green Envelopes - Pointed Flap, 70T
 
Terra Green Astrobright Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Matte
$290.14per 2500 Pack
A1 LCI Felt Warm Cream Envelopes - Straight Flap, 70T
 
Warm Cream LCI Felt Envelopes 3 5/8 x 5 1/8 - Straight Flap - Felt
$9.40per 25 Pack
A1 Curious Metallics Red Lacquer Envelopes - Straight Flap, 80T
5 More Colors >
 
Red Lacquer Curious Metallics Envelopes 3 5/8 x 5 1/8 - Straight Flap - Metallic
$6.13per 25 Pack
A1 Stardream Coral Envelopes - Straight Flap, 81T
11 More Colors >
 
Coral Stardream Envelopes 3 5/8 x 5 1/8 - Straight Flap - Metallic
$5.31per 25 Pack
A1 Gmund Wood Tindalo Envelopes - Straight Flap, 68T
 
Tindalo Wood Grain Envelopes 3 5/8 x 5 1/8 - Straight Flap - Wood Grain
$9.96per 25 Pack
A1 LCI Smooth Radiant White Envelopes - Pointed Flap, 70T
 
Radiant White LCI Smooth Envelopes 3 5/8 x 5 1/8 - Pointed Flap - Smooth
$5.93per 25 Pack
A1 LCI Linen Natural White Envelopes - Straight Flap, 70T
 
Natural White LCI Linen Envelopes 3 5/8 x 5 1/8 - Straight Flap - Linen
$7.52per 25 Pack
A1 LCI Smooth Ecru Envelopes - Straight Flap, 70T
 
Ecru LCI Smooth Envelopes 3 5/8 x 5 1/8 - Straight Flap - Smooth
$5.93per 25 Pack
A1 LCI Smooth Ecru Envelopes - Straight Flap, 70T
 
A1 LCI Smooth Ecru Envelopes - Straight Flap, 70T
$91.55per 1000 Pack
A1 LCI Smooth Ecru Envelopes - Euro Flap, 80T
 
Ecru LCI Smooth Envelopes 3 5/8 x 5 1/8 - Euro Flap - Smooth
$7.16per 25 Pack
A1 Gmund No Bleach Envelopes - Euro Flap, 81lb
 
No Bleach No Color No Bleach Envelopes 3 5/8 x 5 1/8 - Euro Flap - Organic
$7.09per 25 Pack
A1 Gmund Colors Matt Sun Glow Envelopes - Euro Flap, 81T
8 More Colors >
 
Sun Glow Gmund Colors MATT Envelopes 3 5/8 x 5 1/8 - Euro Flap - Matte
$7.23per 25 Pack
A1 Gmund Colors Matt Black Forest Envelopes - Euro Flap, 68T
23 More Colors >
 
Black Forest Gmund Colors MATT Envelopes 3 5/8 x 5 1/8 - Euro Flap - Matte
$7.23per 25 Pack
A1 Gmund Colors Matt Limba Envelopes - Euro Flap, 91T
 
Limba Gmund Colors MATT Envelopes 3 5/8 x 5 1/8 - Euro Flap - Matte
$7.23per 25 Pack
A1 Stardream Crystal Envelopes - Euro Flap, 81T
 
Crystal Stardream Envelopes 3 5/8 x 5 1/8 - Euro Flap - Metallic
$5.31per 25 Pack
A1 Gmund Cotton Max White Envelopes - Euro Flap, 74T
 
Max White 100% Cotton Envelopes 3 5/8 x 5 1/8 - Euro Flap - Cotton
$9.58per 25 Pack
SALE
34% OFF
A1 Gmund Cotton Max White Envelopes - Old World Flap, 74T
 
A1 Gmund Cotton Max White Envelopes - Old World Flap, 74T
$5.23per 25 Pack
 

A1 Envelopes (FAQs)

Is this envelope suitable for use as a wedding RSVP envelope?

Yes, A1 3 5/8 x 5 1/8 envelope size is a common, standard RSVP envelope size. To match your custom invites, we offer hundreds of A1 response envelopes in colors, finishes, and textures galore, all blank or printed with your return address.

Learn more about LCI Paper's envelope printing service.

A1 envelopes a bit too small for your taste? A2 envelopes are the second most popular response envelope size.

Can little A1 envelopes be mailed in the United States?

Yes, though they are small, A1 envelopes can be mailed through the United States Postal Service.

Do A1 3 5/8 x 5 1/8 envelopes require normal postage?

A1 envelopes require standard postage so long as they weigh 1 ounce or under.

What is the difference between 4-bar and A1 envelopes?

Pertaining to size, nothing! The terms 4-bar and A1 envelopes both refer to envelopes measuring 3 5/8 x 5 1/8 inches - the standard, popular R.S.V.P. envelope size. In technical paper jargon terms, bar comes from baronial - a style of announcement envelope with a traditional pointed flap - but in average joe, envelope size terms, A1 and 4-bar are synonymous.

These envelopes are also commonly referred to as A-1 envelopes, and 3x5 envelopes.

I need wedding reply envelope etiquette help! How do I properly address my envelopes to include both my fiance and myself?

First and foremost, the actual mailing address is the most important piece of a RSVP return address, so be sure that the address is correct and recognizable to your local post office.

Regarding the names, there are many common ways of doing this - take your pick!

  • Jane Doe and John Smith
  • J. Doe & J. Smith
  • The Future Mr. and Mrs. Smith
  • The Future Mr. and Mrs.
  • J & J (in a decorative monogram)
  • ...and with your creativity, the list goes on