welcome to the riwishi size guide! We understand that finding the perfect fit online can be tricky, especially with items sourced from different brands and suppliers. This guide aims to provide you with the most accurate sizing information available from our main suppliers.

how to measure yourself:

Bust/Chest: Measure around the fullest part of your bust/chest, keeping the tape measure horizontal.

Waist: Measure around your natural waistline, usually the narrowest part of your torso or just above your hips. Keep the tape comfortably loose.

Hips: Measure around the fullest part of your hips and bottom.

Inner Leg (Inseam): For trousers, measure from the top of your inside leg at the crotch down to your ankle bone, or to the desired length.

Height: Stand straight against a wall without shoes and measure from the top of your head to the floor.

Bra Band: Measure snugly around your ribcage, just underneath your bust.

Bra Cup: Measure around the fullest part of your bust. The difference between this and your band measurement helps determine cup size.

Please note: Sizing can vary slightly between brands and even different styles from the same brand. These charts are a general guide. If a specific product has unique sizing notes, we will try to include them on the product page. For Petite and Tall ranges, see specific notes at the end of this section.

nightwear – UK size conversion

jeans & trousers – leg length by height

(this provides inner leg length based on overall height and fit type)

lingerie – general sizing

lingerie – bra band sizes

lingerie – international bra cup sizes

(note: this is a general conversion and can vary significantly by brand)

petite range information

our petite range is generally available in UK sizes 6 – 20 and is suitable for women
who are 5′ 3″ (160cm) and under. adjustments are typically:

tall range information

our tall range is generally available in UK sizes 6 – 20 and is suitable for women who
are 5′ 10″ (177.5cm) and over. adjustments are typically: