Women’s Altra Experience Flow ST

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

color

Black/White

Light Blue

Tan

White/Coral

White/Gray

Size

Clear

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Experience the blend of comfort and stability in the new Altra Experience Flow ST, featuring compression-molded EVA foam and a performance rocker

A New Take on Altra’s Comfortable and Efficient Stability Shoe

Formerly the Experience Form, Altra’s moderate-cushion light stability shoe is new and improved as the Experience Flow ST. Despite the new name, Altra’s latest stability upgrade delivers the same natural feel, low 4mm drop, and subtle, non-obtrusive stability system as its predecessor.

While the Experience Form featured a firm, compression-molded EVA foam, the Experience Flow ST graduates to Altra’s EGO P35 midsole foam, a softer and more responsive performance-oriented cushioning. This bouncy, responsive foam is paired with a pronounced rocker shape to keep you moving forward throughout daily miles or uptempo runs.

The Experience Flow ST is the more supportive counterpart to the neutral Experience Flow, providing gentle support and guidance for runners who overpronate. In the Experience Flow ST, this support takes the form of a medial GuideRail that offers mild correction without feeling stiff, obtrusive, or overly supportive.

On top of the foot, the upper also got some redesigns for maximum step-in comfort. The mesh material is soft and breathable, and the reworked heel collar provides a secure fit without adding any excess weight. Finally, while the 4mm drop is a departure from Altra’s standard 0mm drop shoes, the brand stays true to its roots with a roomy Standard FootShape toe box and a natural, grounded ride.

Features and Benefits

New EGO P35 foam is softer and more responsive than the previous EVA foam, giving you extra comfort, energy return, and efficiency in every step
Subtle medial GuideRail offers a touch of support without feeling too stiff or unnatural
Redesigned engineered mesh upper is flexible and breathable with a secure lockdown for maximal comfort and confidence
Standard FootShape toe box offers a roomy fit with plenty of space for toes to move naturally
Rocker geometry keeps you moving forward and drives smooth transitions