Product Details

24 oz. Water Bottle

#MG106
Promote proper hydration during the next promotional campaign with help from this 24 oz. (709 mL) bike bottle made of HDPE plastic in the U.S. and up to 50% post-consumer recycled materials. This white bottle features a leak-resistant screw top with a wide-mouth design and a pull-spout (cap available in several colors). It measures 8 1/2"H x 3"D and is made of BPA-free materials. Customize each one with an imprint of your company name and logo for maximum brand exposure. Not microwave or dishwasher safe - hand wash only.

Price: $1.17 Per piece.

Additional Details:

Available Colors:
  • Any
  • Any color
  • ASPHALT
  • Athletic Gold
  • Athletic Heather/ Jet Black
  • Athletic Heather/ Navy
  • Atlantic Blue/ Chrome
  • Black
  • Black Electric
  • Black Electric/ Black
  • Black/ Chrome
  • Blaze Orange
  • Blue
  • Blue-Navy - 282 C
  • Blue-Process - Process Blue C
  • Blue-Reflex - Reflex Blue C
  • Bright Kelly Green
  • Brown
  • Brown/ Chrome
  • Burgundy
  • Burgundy - 202 C
  • Camo
  • CARBON
  • Carolina Blue
  • Charcoal (CA)
  • CLASSIC NAVY
  • CLASSIC RED
  • Coastal Blue
  • Cobalt (CBT)
  • Dark Green
  • Dark Navy
  • Dark Royal- Black Electric
  • Deep Black
  • Deep Forest Green
  • Deep Red Electric/ Deep Red
  • Forest Green
  • Gold
  • Gold (Metallic) - 874 C
  • Graphite
  • Gray
  • Gray (GY)
  • Gray - 423 C
  • Gray - Cool Gray 4 C
  • Green
  • Green-Dark - 343 C
  • Green-Lime - 375 C
  • Green-Medium - 347 C
  • Grey-Black Electric
  • Grey-Black Electric/ Black
  • Gusty Grey
  • HEATHER GREY
  • Heritage Blue/ Royal
  • Kelly Green
  • Lemon Drop Yellow
  • Light Blue
  • Light Green
  • Lime
  • Lime Green
  • Maroon
  • Matte Silver
  • NAVY
  • Navy (NY)
  • Navy Blue
  • Navy/ Heritage Blue
  • Ocean Blue
  • orange
  • Orange - 021 C
  • Pink
  • Pink Azalea
  • Pink-Hot - 225 C
  • Process Blue
  • Purple
  • Purple - 268 C
  • Purple Electric
  • Red
  • Red - 199 C
  • Red - 485 C
  • Reflex Blue
  • Rich Red
  • River Blue Navy
  • Royal Blue
  • Silver
  • Silver (Metallic) - 877 C
  • Silver Electric
  • Smoke Grey/ Chrome
  • Stainless
  • Standard
  • Tan
  • Teal
  • Teal - 327 C
  • True Navy Electric
  • True Navy Electric/ True Navy
  • True Royal
  • True Royal Electric
  • True Royal Electric/ True Royal
  • Violet
  • Wheat
  • White
  • White/ Athletic Maroon
  • White/ Dark Green
  • White/ Dark Grey
  • White/ Jet Black
  • White/ Navy
  • White/ Purple
  • White/ Red
  • White/ Royal
  • Yellow
  • Yellow - 102 C
  • Yellow-Gold-Athletic - 123 C
Available Materials:
  • .020 Thickness
  • .020" Deluxe Clear Plastic
  • .030 Thickness
  • 1050D Ballistic Nylon with Water and Oil Resistance Treatment, Full Grain Leather Trim
  • 110g Laminated Non-Woven Polypropylene
  • 12 Oz. Cotton
  • 130lb Gloss Paper
  • 16 oz. Cotton Canvas
  • 160 GSM Non-Woven Polypropylene
  • 1680d Polyester
  • 18/8 GradeStainlessSteel
  • 18/8 Stainless Steel
  • 190T Polyester
  • 210d Nylon
  • 210D Poly
  • 210D Polyester
  • 210D Polyester Ripstop
  • 210d Polyester with Non-Woven Polypropylene
  • 300D Poly
  • 420D Dobby Polyester, Air Mesh
  • 420d Polyester
  • 50/37/13 Poly/Cotton/Rayon
  • 600 Denier Polycanvas
  • 600 Denier Polycanvas and Furong
  • 600d Duralite and Waffle Weave
  • 600D Poly
  • 600d PolyCanvas
  • 600D Polyester
  • 600d polyester / 420d honeycomb
  • 600D Polyester, PEVA lining
  • 600D Polyester/Matte Polyester
  • 750D Polyester, 1000D Polyester
  • 80g Non-Woven Polypropylene
  • 840 Denier Polyester
  • ABS
  • ABS Plastic
  • Acid-free Paper (Notebook), .040 Thick Chipboard (Gift Box)
  • Acrylic
  • Acrylic Plastic
  • Alloy
  • Aluminum
  • Aluminum and ABS Plastic
  • ALUMINUM-PLASTIC
  • ALUMINUM-PLASTIC-POLYESTER
  • ALUMINUM-PLASTIC-POLYETHYLENE (PE)
  • ALUMINUM-PLASTIC-VINYL
  • ALUMINUM-POLYESTER-POLYESTER
  • AS Plastic
  • Bamboo
  • Blend: Cotton/Polyester (60/40)
  • Blend: Cotton/Polyester Jersey (60/40)
  • Blend: Polyester/Rayon (70/30)
  • Blend: Polyester/Spandex (96/4)
  • Brass
  • Calfskin Leather-Nylon
  • Canvas
  • Canvas-Cork
  • Cardboard
  • Ceramic
  • Ceramic, Terracotta
  • Chipboard
  • Cork
  • Cotton
  • Cotton Canvas
  • Cotton Jersey
  • Cotton Jersey Knit
  • Cotton Twill
  • Crystal
  • Dobby Nylon
  • Double Wall Plastic
  • Eastman Tritan™ copolyester
  • EVA
  • FABRIC
  • Felt
  • Fleece
  • Glass
  • GT Grain Leather
  • HD 600D Polyester
  • HDPE Plastic
  • Hook & Loop
  • Iron with enamel coating
  • Italian UltraHyde
  • Jute
  • Laminated non-woven
  • Leather
  • Leather-Zinc Alloy
  • Leatherette
  • Metal
  • Metal Clip
  • METAL-PLASTIC-POLYESTER-ALUMINUM-POLYESTER
  • Microfiber
  • Non-Woven Polypropylene
  • Nylon
  • NYLON-ALUMINUM-POLYESTER
  • NYLON-STEEL-PLASTIC-METAL-POLYESTER
  • NYLON-STEEL-PLASTIC-METAL-VINYL
  • NYLON-STEEL-POLYESTER
  • Paper
  • Paper-Straw
  • PE
  • PET
  • PET-Polypropylene
  • PEVA Lining
  • PEVA Mesh
  • Phthalate-free TPE laminate with a 1000D nylon base
  • Plastic
  • Plastic case
  • PLASTIC-ALUMINUM-POLYESTER
  • Plastic-Copper
  • Plastic-Metal
  • Plastic-PLASTIC
  • Plastic-STEEL
  • Poly Pongee
  • Polycanvas-Nylon
  • Polycarbonate (PC)
  • POLYESTER
  • Polyester Faux Mink-Polyester Lambswool Sherpa
  • Polyester Fleece
  • Polyester Snow Canvas
  • POLYESTER-
  • POLYESTER- FABRIC-PLASTIC-ALUMINUM
  • POLYESTER-ALUMINUM
  • POLYESTER-ALUMINUM-POLYESTER
  • POLYESTER-ALUMINUM-VINYL
  • Polyester-Fleece
  • POLYESTER-PLASTIC-ALUMINUM- FABRIC
  • POLYESTER-POLYESTER
  • POLYESTER-POLYESTER-ALUMINUM-STEEL
  • Polyethylene
  • POLYETHYLENE (PE)
  • Polypropylene
  • Polypropylene (PP)
  • Polyurethane (PUR or PU)
  • Polyurethane Foam
  • Pongee
  • PU
  • PU & Stainless Steel
  • PVC
  • PVC-Steel
  • Recycled Non-Woven PET
  • Ripstop
  • Ripstop 600D Nylon
  • Rubber
  • Silicone
  • Soy
  • Sponge
  • Stainless Steel
  • Stainless steel with plastic casing.
  • Stainless Steel with Plastic Liner
  • Stainless Steel-BondedLeather
  • Stainless Steel-Plastic
  • Stainless Steel-PVC Faux Leather
  • Stainless Steel-Wood
  • Stainless Steel/Plastic
  • Steel
  • STEEL-POLYESTER-POLYESTER-
  • STEEL-POLYESTER-POLYESTER-POLYESTER-
  • Stoneware
  • Tarpaulin
  • Tin
  • UltraHyde
  • VINYL
  • VINYL-Hardware: ABS Nylon
  • VINYL-PLASTIC-ALUMINUM
  • Wood
Available Sizes:
  • 0"H x 0"L
  • 0.1875"H x 0.5000"W
  • 0.25" H x 1.25" W
  • 0.25"H x 1.25"W
  • 0.25"H x 1.5"L
  • 0.2500"H x 0.6250"W
  • 0.2500"H x 0.7500"W
  • 0.2500"H x 0.8750"W
  • 0.3125"H x 1.5"W
  • 0.3750"H x 0.6250"W
  • 0.3750"H x 1.6250"W
  • 0.38"H x 1.75"L
  • 0.38"H x 4"L
  • 0.4375"H x 1.25"W
  • 0.5"H x 1.25"L
  • 0.625"|
  • 0.75 " x 1.75 " x 3.13 "
  • 1 1/2" x 1/2"
  • 1 1/2" x 1/4"
  • 1 1/2" x 2"
  • 1 1/2" x 3/8"
  • 1 1/2"w x 3/4"h
  • 1 1/4" W x 1/2" H
  • 1 1/4" W x 3 1/4" H
  • 1 5/8" w x 1/2" h
  • 1" x 1/2"
  • 1"H x 0.75"W
  • 1"H x 1.25"L
  • 1"H x 1.375"W
  • 1.375" x 0.1875"
  • 1.5" x 1.5"
  • 1.75 " x 0.63 " x 0.63 "
  • 1.75" W x 1.75" H x 1.75" D|on Custom Packaging and Star Top Boxes
  • 10 " x 19.5 " x 13.5 "
  • 10" x 10"
  • 10" x 7"
  • 10.35 " x 3.18 "
  • 11.5 " x 9.25 " x 0.25 "
  • 12 " x 12 "
  • 12" x 10"
  • 12" x 12"
  • 13 " x 16 "
  • 13 1/2 " x 18 "
  • 14 " x 18 " x 6 "
  • 16 oz
  • 18 " x 12 " x 9 "
  • 2 1/2" x 2 1/2"
  • 2 1/2" x 4"|Journal
  • 2 1/4" x 2 1/4"
  • 2 3/4" x 1/2" pad center of flute
  • 2 oz
  • 2" x 1 3/5"
  • 2" x 1"|Pen (optional)
  • 2" x 1.5"
  • 2" x 1/4"
  • 2" x 12"
  • 2" x 3"
  • 2.0000"H x 2.0000"W
  • 2.0000"H x 3.0000"W
  • 2.25 " x 2.25 "
  • 2.25" x 1"
  • 2.5" x 1"
  • 2.625" x 1.375"
  • 2XL
  • 3 " x 8.5 " x 3 "
  • 3 1/2 " x 10 "
  • 3 1/2" w x 2 1/2" h
  • 3 1/2" W x 2 1/2" H - Embroidered
  • 3 1/2" w x 3" h
  • 3 1/2" x 1 3/4" decal center of flute
  • 3 1/2" x 2"
  • 3 1/2" x 3 1/2"
  • 3 1/4" x 2"
  • 3 13/16" x 2 3/8"
  • 3 3/8 " x 2 1/4 "
  • 3" x 2 1/2"
  • 3" x 3"
  • 3"H x 3.75"L
  • 3"H x 7.26"L
  • 3"H x 8.38"L
  • 3"H x 9"W
  • 3.079" x 1.908"
  • 3.5 " x 4.62 " x 5.25 "
  • 3.5"H x 2.5"W
  • 3.5"H x 3.5"W
  • 3.5"H x 4"W
  • 3.5"H x 5"W
  • 3.54 " x 4.72 "
  • 3.622" x 2.441"
  • 3/4"w x 3/16"h
  • 35 " x 119 "
  • 3XL
  • 4 " x 12.75 " x 16.25 "
  • 4 " x 14.5 " x 12 "
  • 4 1/2" x 2 1/8"
  • 4"
  • 4" Dia
  • 4" w x 2 1/2" h
  • 4" W x 4" H
  • 4" x 2 1/2"
  • 4" x 3"
  • 4" x 4"
  • 4"H x 7"L
  • 4.0000"H x 4.0000"W
  • 4.0000"H x 6.0000"W
  • 4.25 " x 1.625 " x 4.25 "
  • 4.25 " x 7.25 " x 10.25 "
  • 4.5"H x 4.5"L
  • 4.5000"H x 6.0000"W
  • 4.75 " x 4.75 " x 5.5 "
  • 5 " x 5 " x .01 "
  • 5 1/2 "
  • 5 3/4 "
  • 5"
  • 5" W x 6" H - Silk-Screen or Transfer
  • 5" x 5"
  • 5"H x 3"L
  • 5.5 "
  • 5.5" x 11.5"
  • 5.51 " x 0.39 "
  • 5.875" x 3.25"
  • 5/8" h x 3/4" w
  • 5/8" W x 1" H|
  • 54 "
  • 6" h x 8" w
  • 6" x 2 1/2"
  • 6" x 2-3/4" x 8"
  • 6" x 4"
  • 6"H x 8"L
  • 6.25 " x 10 " x 10.5 "
  • 6.5" x 6.5"
  • 6.875"H x 1.125"W
  • 6W x 2H
  • 6W x 3.5H
  • 7 " x 1.07 "
  • 7 3/5" x 6"
  • 7" W x 2" H
  • 7" X 5"
  • 8 " x 6 " x 3.25 "
  • 8 3/4 " x 5 1/2 " x 2 3/5 "
  • 8" H x 8" W
  • 8" x 8"
  • 8"w x 8"h
  • 9 " x 1.75 " x 1.75 "
  • 9.5 " x 10.5 " x 11 "
  • 9/16" dia
  • On ball: 1 1/4" diameter
  • On star: 1 1/2" diameter
  • On wand: 3 1/4" x 3/4"
  • PRODUCT COLOR
  • XS
Available Imprint Colors:
  • Any
  • Atlantic Blue/ Chrome
  • Black
  • Black (BK)
  • Black Electric
  • Black/ Chrome
  • Black/Blue Spark
  • Black/Dark Grey
  • Black/Varsity Red
  • Blacktop
  • BLUE
  • Blue Indigo
  • Blue-Navy - 282 C
  • Blue-Process - Process Blue C
  • Blue-Reflex - Reflex Blue C
  • Brown
  • Brown/ Chrome
  • Burgundy
  • Burgundy - 202 C
  • Camo
  • CARBON
  • Cargo Brown
  • Charcoal
  • CLASSIC NAVY
  • CLASSIC RED
  • CLEAR
  • Dark Green
  • Dark Navy
  • Dark Royal- Black Electric
  • Gold (Metallic) - 874 C
  • Graphite
  • Gray (GY)
  • Gray - 423 C
  • Gray - Cool Gray 4 C
  • GREEN
  • Green-Dark - 343 C
  • Green-Lime - 375 C
  • Green-Medium - 347 C
  • Grey-Black Electric
  • Heritage Blue/ Royal
  • Khaki
  • Natural-Black
  • Natural-Light Blue
  • Natural-Navy
  • Natural-Olive
  • Natural-Pink
  • Navy
  • Navy (NY)
  • Navy/ Heritage Blue
  • ORANGE
  • Orange (OR)
  • Orange - 021 C
  • Petrol Grey
  • Pink-Hot - 225 C
  • PURPLE
  • Purple - 268 C
  • Purple Electric
  • Red
  • Red (RD)
  • Red - 199 C
  • Red - 485 C
  • Rose-Gold
  • Royal
  • Royal (RYL)
  • Royal Blue
  • Silver (Metallic) - 877 C
  • Silver Electric
  • Smoke Grey/ Chrome
  • Stainless
  • Standard
  • Stone
  • Tan
  • Teal - 327 C
  • Teal Spark
  • Titanium
  • Translucent Green
  • Translucent Purple
  • Translucent Red
  • True Navy
  • True Navy Electric
  • TRUE ROYAL
  • True Royal Electric
  • WHITE
  • White/ Dark Grey
  • YELLOW
  • Yellow - 102 C
  • Yellow-Gold-Athletic - 123 C
Available Imprint Methods:
  • 1 Color 1 Location
  • 3D Image Bonding
  • 4 Color
  • 4 Color Process
  • 4 Color Process Dome
  • 4 Color Process Label
  • 4 Color Process Labels
  • 4-color process
  • 4CP Digital Label
  • 4CP Heat Transfer
  • 4CP Transfer
  • Aqua Mark
  • Blank
  • Blind Deboss w/ Full-Color Tip-in
  • CLEAR INSERT
  • Color Imprint
  • Color Stamp
  • ColorBlast
  • Colorbrite Drinkware
  • ColorPrint
  • ColorPrint - 2
  • ColorSplash
  • Deboss
  • Debossed
  • Decal
  • Digital Four Color Process
  • Digital Print Transfer - Heat Transferred
  • Digital Printing
  • Direct Imprint
  • DIRECT PRINT
  • Direct To Garment
  • Doming
  • Drinkware
  • Embroider
  • EMBROIDERED
  • Embroidery
  • Embroidery, up to 8000 Stitches
  • Engraving
  • Epoxy Dome
  • Etched
  • Etched Imprint
  • Flex Emblem
  • Foil Stamped
  • Foil Stamping
  • Four Color Process
  • Four Color Process Digital Label
  • Four Color Process Printing on Custom Packaging
  • Four Color Process Wrapper for individually wrapped vanilla wafer cookie or cookies
  • Full Color
  • Full Color Dome
  • Full Color Process
  • Full Color Transfer
  • Full-Color Digital
  • Full-Color Dye Sublimation
  • Full-Color Imprint
  • Gemphoto
  • HD Ready
  • Heat Transfer
  • Heat Transferred
  • Hot Stamped
  • Hot Stamping
  • HP PRINTER
  • Image Bonding (R) Four Color Process
  • Imprinted
  • Jewelry Engraved
  • Label
  • Laser
  • Laser & Oxidation
  • LASER ENGRAVED
  • Laser Engraving
  • Laser Plus
  • LogoDome
  • Max Perfect Print
  • Mixed-Media Deboss
  • Mixed-Media Graphic Page
  • Other
  • Pad Print
  • Pad Print 1C
  • Pad Printing
  • Pad-Print
  • Perfect Print
  • PERFECT PRINT (PP)
  • Perma Press
  • PERMA PRESS (PS)
  • Personalization
  • Personalized
  • PhotoGrafixx - 2
  • PhotoGrafixx - 3
  • PhotoGrafixx - 4
  • Print
  • Printed
  • Printed Spot Color
  • Sand Carve
  • Sand Etch
  • Sand Etched
  • Screen Print
  • Screen Print (SP)
  • Screen printed
  • Silk Screen
  • Silk-Screen
  • Silkscreen
  • Silkscreen imprint on dart ballpoint stylus pens
  • Silkscreen-Spot Color
  • Silkscreened
  • SpectraColor (R) II
  • Spot Color
  • Spot Color Transfer
  • Stamping
  • Standard
  • Sublimation
  • Transfer
  • Transfer Print
  • TRANSFER PRINT (TR)
  • TruColor
  • TruColor (TM)
  • UnDefined
  • UNIMPRINTED
  • WHITE INSERT
  • Woven
Available Imprint Sizes:
  • .5W x .75H
  • 0"H x 0"L
  • 0.25" W x 2" H
  • 0.25"H x 1.5"L
  • 0.25"H x 2"L
  • 0.25"H x 2.25"L
  • 0.2500"H x 0.7500"W
  • 0.3750"H x 1.2500"W
  • 0.5" x 4"
  • 0.56 " x 5.31 " x 0.69 "
  • 0.63"H x 0.63"L
  • 0.75" x 0.25"
  • 0.75"H x 1.25"W
  • 0.75"H x 1.5"L
  • 1 1/2" x 1/2"
  • 1 1/2" x 3/8"
  • 1 1/4" W x 1/2" H
  • 1 1/8" x 4 1/2"
  • 1 3/4" x 1 3/8"
  • 1 3/8" x 1 3/8"
  • 1 7/8" x 1/2"
  • 1 GB
  • 1"
  • 1"H x 1"W
  • 1.0000"H x 2.0000"W
  • 1.25"H x 1.5"W
  • 10 " x 4 " x 2.5 "
  • 10 1/4"H x 7 1/4"W x 41/4 "D
  • 10" W x 8" H
  • 10"W x 1 1/2"H
  • 11 " x 1 7/8 "
  • 11 " x 14 "
  • 11 " x 16 3/4 " x 5 "
  • 11 1/2 "
  • 115.5 " x 38 "
  • 12" x 12"
  • 12.875 " x 18.625 " x 11 "
  • 17.5 " x 10 " x 8 "
  • 2 1/4" x 2 1/2"
  • 2 1/4" x 3/8"
  • 2 2/5 " x 2 2/5 "
  • 2 3/4" x 1"
  • 2 GB
  • 2" H x 2 3/4" W
  • 2" W x 1/4" H|Multi Color Imprint And Second Side Imprint on sunglasses
  • 2" x .38"
  • 2" x 1 1/2"
  • 2" x 1"
  • 2" x 12"
  • 2" x 2"
  • 2" x 3"
  • 2" x 5/16"
  • 2" x 7" W
  • 2"H x 2"W
  • 2"H x 2.5"L
  • 2"H x 3"L
  • 2.17" x 98"
  • 2.31 " x 8.25 " x 8.5 "
  • 2.5" x 4"
  • 2.5"w x 1.25"h
  • 2.5W X 7H
  • 24 "
  • 2W X 1H
  • 2XL
  • 3 " x 1 1/2 "
  • 3 1/2" W
  • 3 1/2" x 2 1/2"
  • 3 1/2"W x 5"H
  • 3 1/4" x 3"
  • 3" W x 2" H
  • 3" x 1 1/2"
  • 3" x 2"
  • 3" x 3"
  • 3"H x 4"W
  • 3.5 " x 3.37 "
  • 3.5"H x 5"L
  • 3.5"H x 7"L
  • 3XL
  • 4 1/2" W x 2 1/8" H
  • 4 1/2" x 3 1/2"
  • 4"
  • 4" x 1 3/4"
  • 4" x 4"
  • 4"H x 3"L
  • 4"H x 3.4"L
  • 4"H x 5"W
  • 4"H x 8"L
  • 4.0000"H x 4.0000"W
  • 4.0000"H x 6.0000"W
  • 4.5"H x 4.5"L
  • 4.5"H x 7"W
  • 4.5000"H x 6.0000"W
  • 4.75 " x 0.375 " x 2.625 "
  • 40 " x 75 " x 14 "
  • 4W X 1H
  • 4XL
  • 5" x 3"
  • 5" x 5"
  • 5"w x 6"h
  • 5.5 "
  • 6 " x 12 " x 12 "
  • 6 1/2" x 5"
  • 6 3/8 "
  • 6" x 3"
  • 6" x 6"
  • 6W X 2H
  • 7 " x 4 " x 8.88 "
  • 7" x 2 1/2"
  • 7" x 6"
  • 7.5 " x 11 " x 19 "
  • 7.75 " x 5.31 " x 4.03 "
  • 7.87 " x 2.32 " x 2.55 "
  • 8 "
  • 8" W x 5" H
  • 8"H x 7"L
  • 8.75 " x 4.75 " x .01 "
  • Blank
  • Call for specs.
  • Imprint area (label and DI): 2.27" w x 2.57 "h Trim: 2.5" w x 2.8" h
  • L
  • M
  • S
  • Standard
  • XL
  • XS

Custom Imprint Options

Most items can be custom imprinted with your promotional message or custom imprinted logo. Some items include imprint in the pricing. (A minimal set-up fee may apply.)

Call us toll-free 855-900-BLUE (2583): and ask for Team Blue or email us: Contact Team Blue for imprint details and to request a quote.

Additional Information

Production schedules are determined after proof approval and do not include shipping time.

Most items are available via rush production, contact Team Blue for details and assistance.

Please refer to this product information as a basic guide. Team Blue will contact you to verify pricing, details, quantities, imprint options and delivery schedules once your order is received.

Some items may be discontinued or there might be additional set up cost and production time. An Overture team member will contact you with a replacement item or to discuss set up cost and/or production time.


Have questions about a product
or ready to place an order?

Contact Team Blue