Pursuit of Better

Foundation

Shop Now
Log In

Shopping Bag (0)

Your cart is empty

YOU MAY BE INTERESTED IN

Long Sleeve Tee - BlackLong Sleeve Tee - Black
Long Sleeve Tee - Black Sale price$88.00
24/7 Legging - Black24/7 Legging - Black
24/7 Legging - Black Sale price$118.00
Hip Brief 3 Pack - BlackHip Brief 3 Pack - Black
Hip Brief 3 Pack - Black Sale price$81.00
Core Collection

Core Collection

Your everyday foundation, refined. SAISEI’s Core pieces are designed for comfort, longevity, and quiet confidence - effortlessly versatile and made to be lived in.

Filters
Long Sleeve Tee - BlackLong Sleeve Tee - Black
Long Sleeve Tee - Black Sale price$88.00
24/7 Legging - Black24/7 Legging - Black
24/7 Legging - Black Sale price$118.00
Hip Brief 3 Pack - BlackHip Brief 3 Pack - Black
Hip Brief 3 Pack - Black Sale price$81.00
Open Back Bodysuit - BlackOpen Back Bodysuit - Black
Open Back Bodysuit - Black Sale price$108.00
New
Movement Racerback Sports Bra - AcornMovement Racerback Sports Bra - Acorn
Movement Racerback Sports Bra - Acorn Sale price$88.00
New
Movement High Rise Leggings - AcornMovement High Rise Leggings - Acorn
Movement High Rise Leggings - Acorn Sale price$124.00
Soft Rib Socks - 3 Pack - Navy / Heather Grey / PearlSoft Rib Socks - 3 Pack - Navy / Heather Grey / Pearl
Soft Rib Socks - 3 Pack - Navy / Heather Grey / Pearl Sale price$52.00
Triangle Bra - CocoaTriangle Bra - Cocoa
Triangle Bra - Cocoa Sale price$78.00
String Bikini Brief 3 Pack - TaupeString Bikini Brief 3 Pack - Taupe
String Bikini Brief 3 Pack - Taupe Sale price$81.00
Crew Neck Tee - PearlCrew Neck Tee - Pearl
Crew Neck Tee - Pearl Sale price$78.00
24/7 Legging - Pearl24/7 Legging - Pearl
24/7 Legging - Pearl Sale price$118.00
Soft Rib Socks - 3 Pack - Black / Heather Grey / WhiteSoft Rib Socks - 3 Pack - Black / Heather Grey / White
Soft Rib Socks - 3 Pack - Black / Heather Grey / White Sale price$52.00
Long Sleeve Tee - NavyLong Sleeve Tee - Navy
Long Sleeve Tee - Navy Sale price$88.00
24/7 Legging - Navy24/7 Legging - Navy
24/7 Legging - Navy Sale price$118.00
Movement Mid Rise 2" Short - PearlMovement Mid Rise 2" Short - Pearl
Movement Mid Rise 2" Short - Pearl Sale price$88.00
Movement High Rise Leggings - PearlMovement High Rise Leggings - Pearl
Movement High Rise Leggings - Pearl Sale price$124.00
Crew Neck Tee - BlackCrew Neck Tee - Black
Crew Neck Tee - Black Sale price$78.00
24/7 Short - Black24/7 Short - Black
24/7 Short - Black Sale price$88.00
Movement Racerback Sports Bra - NavyMovement Racerback Sports Bra - Navy
Movement Racerback Sports Bra - Navy Sale price$88.00
Movement High Rise Leggings - BlackMovement High Rise Leggings - Black
Movement High Rise Leggings - Black Sale price$124.00
Long Sleeve Tee - PearlLong Sleeve Tee - Pearl
Long Sleeve Tee - Pearl Sale price$88.00
Movement Racerback Sports Bra - PearlMovement Racerback Sports Bra - Pearl
Movement Racerback Sports Bra - Pearl Sale price$88.00
Short Jumpsuit - BlackShort Jumpsuit - Black
Short Jumpsuit - Black Sale price$138.00
Cami Bodysuit - PearlCami Bodysuit - Pearl
Cami Bodysuit - Pearl Sale price$98.00
24/7 Short - Pearl24/7 Short - Pearl
24/7 Short - Pearl Sale price$88.00
Movement High Neck Sports Bra - BlackMovement High Neck Sports Bra - Black
Movement High Neck Sports Bra - Black Sale price$94.00
Movement Racerback Sports Bra - BlackMovement Racerback Sports Bra - Black
Movement Racerback Sports Bra - Black Sale price$88.00
High Neck Tank - BlackHigh Neck Tank - Black
High Neck Tank - Black Sale price$78.00
Movement Mid Rise 2" Short - BlackMovement Mid Rise 2" Short - Black
Movement Mid Rise 2" Short - Black Sale price$88.00
Cami Bodysuit - BlackCami Bodysuit - Black
Cami Bodysuit - Black Sale price$98.00
Scoop Bra - TaupeScoop Bra - Taupe
Scoop Bra - Taupe Sale price$88.00
Double Scoop Bra Top - NavyDouble Scoop Bra Top - Navy
Double Scoop Bra Top - Navy Sale price$88.00
Movement High Rise Leggings - NavyMovement High Rise Leggings - Navy
Movement High Rise Leggings - Navy Sale price$124.00
High Neck Tank - PearlHigh Neck Tank - Pearl
High Neck Tank - Pearl Sale price$78.00
Cami Bodysuit - TaupeCami Bodysuit - Taupe
Cami Bodysuit - Taupe Sale price$98.00
Micro Mini Shorts 3 Pack - CocoaMicro Mini Shorts 3 Pack - Cocoa
Micro Mini Shorts 3 Pack - Cocoa Sale price$91.00
String Bikini Brief 3 Pack - CocoaString Bikini Brief 3 Pack - Cocoa
String Bikini Brief 3 Pack - Cocoa Sale price$81.00
Scoop Bra Top - PearlScoop Bra Top - Pearl
Scoop Bra Top - Pearl Sale price$88.00
Double Scoop Bra Top - PearlDouble Scoop Bra Top - Pearl
Double Scoop Bra Top - Pearl Sale price$88.00
Double Scoop Bra Top - BlackDouble Scoop Bra Top - Black
Double Scoop Bra Top - Black Sale price$88.00
24/7 Short - Navy24/7 Short - Navy
24/7 Short - Navy Sale price$88.00
Crew Neck Tee - NavyCrew Neck Tee - Navy
Crew Neck Tee - Navy Sale price$78.00
Movement Mid Rise 2" Short - NavyMovement Mid Rise 2" Short - Navy
Movement Mid Rise 2" Short - Navy Sale price$88.00
High Waist Brief 3 Pack - TaupeHigh Waist Brief 3 Pack - Taupe
High Waist Brief 3 Pack - Taupe Sale price$81.00
Triangle Bra - BlackTriangle Bra - Black
Triangle Bra - Black Sale price$78.00
High Neck Bra Top - BlackHigh Neck Bra Top - Black
High Neck Bra Top - Black Sale price$94.00
High Neck Tank - NavyHigh Neck Tank - Navy
High Neck Tank - Navy Sale price$78.00
Micro Mini Shorts 3 Pack - NavyMicro Mini Shorts 3 Pack - Navy
Micro Mini Shorts 3 Pack - Navy Sale price$91.00
Micro Mini Shorts 3 Pack - BlackMicro Mini Shorts 3 Pack - Black
Micro Mini Shorts 3 Pack - Black Sale price$91.00

Help Lounge

My Account

The Circle
SAISEI's Exclusive Membership Club
Join Now
Dev by WeDev
What is my size?
Waist measurement

Waist

Hip measurement

Hip

Chest measurement

Chest

Measurement XS
US 0–2		 S
US 2–4		 M
US 6–8		 L
US 10–12		 XL
US 14–16
Waist (in) 25-27 27-29 29-31 31-37 37-40
Hip (in) 34-36 36-38 38-40 40-43 43-46
Chest (in) 32-34 34-36 36-38 38-40 40-42.5
If you are between sizes, for tighter look – size down, for looser look – size up.
The Circle
SAISEI's Exclusive Membership Club
Join Now

Help Lounge

My Account

Dev by WeDev